XBox Live Arcade House Party - Buy All 4 XBLA Games Get 940 Microsoft Points

officially announced by major nelson here [majornelson.com] are dates, prices and this promotion of getting 800 microsoft points back if you buy all 4 games.

2/15/12 - warp : 800 microsoft points - metacritic: 72 [metacritic.com]
2/22/12 - alan wake's american nightmare : 1200 microsoft points - metacritic: 77 [metacritic.com]
2/29/12 - nexuiz : 800 microsoft points - metacritic: ?? [metacritic.com]
3/7/12 - i am alive : 1200 microsoft points - metacritic: ?? [metacritic.com]

these games total up to 4000 microsoft points reduced to 3200 once you get the 800 free points. that's only a 20% savings but like someone below said, not a bad deal if you were planning on getting all 4. or you could look at it as getting nexuiz or warp for free.....

the quote from majornelson:
"PLUS To make the most of your blockbuster game bash, all party goers will receive 800 Microsoft Points when you buy all four participating House Party games from February 15 – March 13."
is also notable because you can wait until the last week to buy all 4 games and still get the 800 points back just in case anyone was questioning when you had to buy each game.

also for the whole month of february you get 5% back on ALL xbox live marketplace purchases (http://rewards.xbox.com). so if you factor that into this deal as well, it will apply to 3 out of the 4 games and get you an extra 140 microsoft points back. so overall you are now getting a 23.5% discount on the games.