Not really. Disgea, Silent Hill and Gravity Rush will all struggle to reach 500k, or anything like it. 

Mortal Kombat will hit 500k, maybe.

LBP and Resistance will probably reach 7-800k.

Nothing will boost sales for more than a week, and even then, maybe only by a couple k.

The Vita NEEDS a system seller. There isn't one yet. And none of those look as though they will be.

I was talking about what I want to play. And LBP, resistance and MK should all be million sellers.

That's cool. I knew that And I agree.

But my point remains that, from a business standpoint, it's pretty poor.

And the best selling Mortal Kombat game this past gen sold 1.6mil, on the PS3, which had a 55mil install base at the time. That's a 2.9% attach rate. And fighting games aren't as big on handhelds. LittleBigPlanet sold 2mil on the PSP, with an install base of 58mil at the time, making it 3.4%. Resistanceon the PSP only sold 800k, on an install base of 57mil at the time, so that ain't gonna happen. For any of those games to sell a million, you'd need closer to 50%, or for it to sell slowly for a very, VERY long time. None of the series' are big enough for that, or to sustain sales.

Remember that Uncharted for PSV has only just reached 500k, and the next best selling game isn't even at 200k. The Vita simply doesn't have the selling power yet. 

You forget PSN. And the bolded will definitely be true, ecspecially for LBP.

Yes, but we have no way to track that. And I sincerely doubt that half of sales come from PSN. They might, but I doubt it.

I concede that LBP may have a chance. But I feel as though it has launched too early in the console's life cycle. The other two games certainly won't sell for much longer that a couple months, they haven't in the past.

The thing is about a 360 price cut is that we have some evidence that can point to a very small increase/sustain.

First is that 360 has become a holiday console. Second is that it only really hits these peaks in the US holiday and some small areas of Europe.

Every year, we see 100$ off on 360. I remember even as far back as 2008, we saw the arcade bundle with 2 games at 199.
A remodel happened shortly after, pushing that stock to 129$, 2009 saw a 50$ "deal" nearly nationwide for the holidays on all models.
2010 and 2011 both saw near nationwide 100$ gift-card deals on all models, often including a year subscription of live.
2011 saw black friday deals of 360arcadekinect bundle for 100$.

Anything remotely similar has never occurred for ps3 or wii. This would point to these deals as being "temporary price drops" paid for by microsoft. A good strategy for not committing to a lowered price and taking in extra revenue during the rest of the year.
Now, if we're already often seeing 360s at the 100$-200$ price mark consistently at Christmas, it makes you wonder exactly how much of a difference an official price cut will change, and furthermore, would these crazy deals continue to exist after a price drop? I would speculate that if the price dropped to 150, then deals would also be reduced to 50$ instead of a hundred.
Will 360 be able to push another record year at the same price during the holidays?
That's the real question.

It's not about whether it can sell with a pricedrop, but will retailers continue to drop 360, and only 360, by 100$? Otherwise, it's going to be the same price as last year even with a price drop.

PSVita actually sells fairly well when it comes to digital sales. While most do not rate a title after buying it (And you can only rate IF you buy it digital), the game does have 3,500 rates in the US store. So in the US we can think of maybe 5-10k more on the sales at least for the US and maybe the same or more in EU.

Even if not, Uncharted would still be boasting a 25% or higher attach rate, which is pretty damn good if you ask me, especially considering not only did it have 25+ other titles to compete with at launch, but also costed $10-$20 more than all other titles. To think what it could be at if it didn't launch at a ridiculous price of $50, but rather $40 like everything else. To think how different it would look if you were talking about 600-650k retail sales on a device that only has a 2M install base.

While I'd love to see such sales I think that's way too much.

Disgaea is niche with cult following so probably around 50k in USA

MK is big name but fightning games usually do terribly on handhelds so 50-100k for USA, maybe 250k WW.

Resistance should be around half of Uncharted ? So like 500k WW (lifetime)

Gravity Daze is a wild card here - it sold decently in Japan and has tons of hype + good opinions from importers but could be too artistic/unique for mass market so there's potential for great sales or flop like Folklore.

LBP should be big - not sure if it'll sell milion but should at least push a few systems.

Also it's interesting how biggest stuff comes at end of May, half of June, end of June - so all in time for Summer holidays - that should maximize the effect from them.

Also, this was a bad time to come out with kinect star wars.
People will be able to play it now and realize how bad it is and not put it on their xmas lists.
You release it more around november, and it would've sold a lot more lifetime.

The brevity in which they decided to release makes it seem that sales aren't sustaining.

Tekken is one of psp's best sellers. Of course MK and tekken are very different games but still.