Last three games I bought, since I bought them all at the same time were;
Saints Row 2 ($110, but was on sale so I got it for $50) - Xbox 360; I loved Saints Row and so I decided to get the second one. Good god, I love it. <3
Star Wars: The Force Unleashed ($100, same with Saints Row 2 - was on sale. Bought for $45) - Xbox 360; I rented it for PS2 and thought it was pretty cool and so I got the 360 version since you hold the lightsaber backwards and all. :3
Need For Speed Most Wanted ($18) - Xbox 360; Possibly the best racing game of all time, and for 18 bucks? Why the hell wouldn't I buy it?