Well, if you wanted... there's a couple buy 2 get 1 free deals comin up... Gamestop/EB's used on (rumored) starts on the 7th... and the Toys R Us B2G1 sale starts again on Oct 14th (rumored)...
Yea you'll be spending about $120 but you get three games... and you could always ebay the two extra that you dont want, and make your money back thus getting NBA for free. (Assuming you can get $60 for each you sell... which is where you get like Halo and Bioshock or something)