So what do you think?

Here are the weekly software sales for America.

Can anybody pick the spikes out as games releases?

I will get Japan's up in the near future.

I posted a chart similar to this a bit ago using Spygmic Software.

Anyways, the spikes -

X360 : 1st spike - Lost Planet
2nd Spike - Crackdown, MLB2k7
3rd Spike - GRAW2, Def Jam Icon
4th Spike - Guitar Hero 2
5th Spike - Spiderman 3, C&C 3
6th Spike (most recent) - Forza 2, Shadowrun

Wii: 1st Spike - WarioWare: SM
2nd Spike: Wii Play
3nd minor spike - Tiger Woods 07, Godfather Wii
4th & 5th Spikes - SPM
5th Spike - Mario Party 8, MK Armageddon

PS3: 1st Spike, Motorstorm
2nd Spike: Elder Scrolls: Oblivion
3rd Spike: F.E.A.R
4th Spike: Spiderman 3

Wii and 360 software sales have been much closer together recently.

XBox sales are far more volatile compared to Wii's sales. This could mean sales of XBox games tend to be higher when released and then fall down more quickly afterwards.

MS is really good at spreading their big selling games to prevent big software falls from staying...

Actually, its far more the fact that Nintendo has a few titles that end up having a very long lifespan, whereas the 360 titles end up doing more of it front-loaded wise. Its not really a hardcore thing.

Nintendo has the advantage of WarioWare, Wii Play, and Super Paper Mario, which have been able (expecially Wii Play) to sell fairly well over a long period of time. In the case of Wii Play, it sells around 50k per week, helping the overall scheme of things.

Also, you have Wii Sports added into that chart, making it harder, as if the 360 had an extra 150,000 software units a week (like the Wii does from Wii Sports/Play), it'd be far more even.

Once the Wii has major software coming out often, you'll see it similar. For refference go back to my Japanese chart with the same figures. The Wii is doing the exact same thing the 360 is in the US, due to the fact no games are bundled.

Again, it also comes down to what software is being presented. When the 360 has shooter-heavy fare, that does cater to the more hardcore, sales do spike, as GRAW 2, GH2, Crackdown, and Lost Planet all sold 200k+ units their first week. Any game that sells THAT high will end up dropping very quickly the next week. The Wii hasn't had that advantage of having any sort of major software (since Zelda:TP) to move 200k+ copies in a week.

Also, within the past....6 weeks, with the 360 lacking shooters, it's sales have been far more consistant, as sales have been mainly pushed by Command & Conquer and Spiderman, which are mid-road favorites, as well as tons of GH2 sales.