Does XBL or PSN have any Steam-like insane sales?

as in like getting games for dirt cheap like Steam had a few weeks back (GTA4 for 5 bucks, Trine for 4).

I want to buy the Motorstorm Pacific Rift Adrenaline and Speed packs..but not for $20 bucks!

we all wish

Well, PC game prices are already a bit lower, you have to remember that. However, even then they don't have quite the deals that Steam does, but they are making progress. PSN does a good job with bundles, and 360's deal of the week has actually had some good stuff up there for half-off. Maybe once those online services have the amount of content that Steam has they will have awesome sales too?

A couple months ago XBL had a one-week sale where some of their best games (portal, castle crashers, geometry wars, braid, Castlevania SOTN) were on sale for 33 - 50% off.

That wasn't bad, but Steam sales are generally far better. Still, I picked up a couple games that I hadn't played.