Lots of 360 RPGs have price cuts too.
Last Remnant is $39.99
http://www.amazon.com/Last-Remnant-Xbox-360/dp/B001CMJAP6/ref=sr_1_11?ie=UTF8&s=videogames&qid=1227583420&sr=1-11
Infinite Undiscovery is $29.97
http://www.amazon.com/Infinite-Undiscovery-Gift-Purchase-Xbox-360/dp/B001D3NPY6/ref=pd_bbs_sr_3?ie=UTF8&s=videogames&qid=1227583247&sr=8-3
or $27.97
http://www.amazon.com/Infinite-Undiscovery-Xbox-360/dp/B00149NCYW/ref=sr_1_2?ie=UTF8&s=videogames&qid=1227583765&sr=1-2
Spectral Force 3 is $19.96
http://www.amazon.com/Spectral-Force-3-Xbox-360/dp/B00122OBH8/ref=sr_1_2?ie=UTF8&s=videogames&qid=1227583352&sr=1-2
Zoids Assualt is $29.96
http://www.amazon.com/Zoids-Assault-Xbox-360/dp/B0019NF0FM/ref=sr_1_7?ie=UTF8&s=videogames&qid=1227583420&sr=1-7
Too Human is $29.96
http://www.amazon.com/Too-Human-Xbox-360/dp/B000R0SS3Y/ref=sr_1_21?ie=UTF8&s=videogames&qid=1227583583&sr=1-21
Culdcept Saga is $19.99
http://www.amazon.com/Culdcept-Saga-Xbox-360/dp/B000Q0ASEW/ref=sr_1_12?ie=UTF8&s=videogames&qid=1227583420&sr=1-12
Operation Darkness $29.99
http://www.amazon.com/Operation-Darkness-Xbox-360/dp/B0013TLQH8/ref=sr_1_1?ie=UTF8&s=videogames&qid=1227583420&sr=1-1