My thought process goes in line with the OP's almost entirely. I sold my 2010 13" for a great price, basically got more than what I paid for it =)
anyway, was all ready to purchase a base 15" until it was announced. I felt a little underwhelmed at $2000. I'm not naive, I know how far $2000 goes and for my uses I couldn't justify the cost. I love OSX and the unibody MBP's but I don't think it was worth a base + hi-res AG which was what I wanted. So thankfully for the 2011 release the 2010's price dropped really nicely. Picked up the 15" in my sig for $1500 straight up, included 8GB ram, I added in the SSD. The $500 I saved I am tossing toward an iPad and accessories for the mbp.
So OP, I totally get what you're saying. Since the 6490 is on par with the 330m, I'm really only missing out on the i7-qm which is great, but with my uses, a highly clocked i7 dual works out well too for WoW and SC2.