The invoice is $36600, and you can get maybe $1000 less than invoice so the good price is $35600.
Plus 3% tax $1068, doc fee $479 (negotiable??), and TT $116, your payment out of pocket: $37,263
Minus $1000 trade in, $5000 down ----> $31,263
same as what you got. so the price is very good.
I have a 2007 Mo, and it is very very good car, in every category. The quality is superior, directly imported from Japan (same as Rogue). Some people rate it higher than Lexus 350. see following Lexus forum:
http://us.lexusownersclub.com/forums/index.php?showtopic=46675