The Xbox Live Marketplace's holiday sale has entered its seventh day with a sports-heavy theme. NBA JAM: On Fire Edition got the ball rolling on wacky '90s reboots, and can be yours for $3.74. The downloadable NFL Blitz didn't received as much love, but would be preferable for American football fantatics as it's also $3.74. Those wanting some football/soccer action would be wise to pick up the Games on Demand version of FIFA Street 3 for only $5. Slightly less than $2 gets you 3 on 3 NHL Arcade. If you dig sports games on a really casual level, and maybe pick up one or two of the course of a generation for curiosity's sake, this is a great way to pick up some more user-friendly games and use them as stepping stones to check out the retail entries in their respective genres.