If you get the 3G model, are you required to set up a 3G account or can you bypass that and just set it up as a Wifi system until the 3G compatibility becomes more appealing?
New copies currently $39.99 on Amazon for the PS3 version (http://www.amazon.com/Mortal-Kombat-Komplete-Edition-sony-playstation3/dp/B006ZTHFPS/ref=sr_1_2?ie=UTF8&qid=1333914118&sr=8-2)
$38.99 for the Xbox 360 version...
Got lucky and found a copy of WWE All-Stars on PS3 for $25 a few days ago (last copy); considering I haven't seen it below $38 on Amazon I snapped it up.