i own my 02 x5 outright, no car payment on it. i am also undecided between trading it in and keeping it. i went to one dealer last month and tested the water, they say they would take my x5 (77K miles) and sell me the 05 x5 low miles with a $450 a month on 60 months term. i love my x5 and modded it to my taste already. is there any other reason i should trade it in? they both look almost the same to me.