@Metallicube: Those $60 HD games usually go down in price over time. There's only a handful of HD games that don't eventually get a permanent price reduction while it's the standard for first party Wii games. My problem isn't that first party Wii games launch at $50-60, it's that they stay there for the entire generation in some cases.

Something I should mention is that in Canada, new first party Wii games are now $60. So for example Heavy Rain launched at the same price as NSMBWii. The only price disparity for new games is with HD third party releases, which tend to be $60-70 where new third party Wii releases tend to be $50 or less.

Edit: The amount of replay value a game has should have not make a game more expensive longer. Even the best games, even if they are made by Nintendo should cost less today than they did on launch in 2007 or 2008. When Sony was on top they reduced prices of their best selling games over time. When they or a third party offered a trilogy re-release of certain games on the ps2, it was usually $20-$30 not $50-60. 

First of all, some of the games you already named, like Muramasa and Little King's Story, are already great reasons to buy a Wii.  But there's a number of other great games you can get.  Just looking at the catalog from Nintendo itself, you have Mario Galaxy, Mario Kart, Smash Bros Brawl, New Super Mario Bros Wii, Punch Out, The Legend of Zelda: Twilight Princess....etc. etc.

But as for your second main worry, is their good games coming out on the horizon?  Yeah....just spend a couple minutes looking on this board and that question should be answered.  2010 looks to be the best year the Wii has had since its launch, if not ever.  Games like Metroid: Other M, Super Mario Galaxy 2, Epic Mickey and Monster Hunter Tri, just to name a few.  Not to mention many more big name games coming, such as Zelda Wii, Kirby Wii, Xenoblade, The Last Story and Dragon Quest X.

But the real decision you should make to gauge if you should buy a Wii or not is weigh how many games you 'want' on the system next to its price.  Considering its $200, I'd say that's worth expecting about at least 4-5 good games out of the system.  And the Wii easily has that many games out right now, plus getting twice that many in 2010 alone.

A product is worth as much as the buyers willing to pay for.

That said, Nintendo titles continues to sell gangbuster and you want them to lower the price? Where's the logic in that?

And are you seroiusly want to compare NSMBWii and Heavy Rain?

Replay value has a lot to do with how long the price remain high. Think second hand market.

you should get the wii, it has the best game this gen (mario galaxy) and also a great zelda game =)
metroid prime trilogy is also a must

Depends on what franchises you like of nintendo really.. I played about 10 games at my nephews and my mate's house and the only games I liked were Mario Galaxy and NSMB.. I did play multiplatform games to though.. games like red steel, SSBB and Mad World were not really good IMO..

i suggest not to buy the wii, i was really dissapointed in nintendo and the new direction they took with the wii, i bought it because i was a nintendo fan boy, and now i just regret it *so im selling it for a decent chunk of change*....i mean brawl was great, and zelda, but in the end, your getting the same thing all over again imo, sure they were innovation with the wii in the first place, but they really arent hitting the audience i wish they were hitting....o well, maybe next gen, but seriously though, imo, dont get it, you can buy a psp with that money or save it up for 360 elite

If you keep replaying the same game over and over again, I am pretty sure you're going to get the same thing all over again.

I second that. I had my Wii since launch and I play almost everday.

please dont act dumb, you know what i meant >_>...

Well, if u want mad world, no more heroes 2 is a no doubter then. It's really a lot better. Mad world is a fun game, but it's not long enough for me.