Should I go for the dodge challenger R/T or SRT8?

first i was going for the SE because it was cheap, but today i went to a car lot to look at them and i checked out the SXT and the R/T and OMG the R/T looks wayyyy better, 2 exaust pipes, nice gas cap, leather interior, mini spoiler, hemi, omg, what to do?? also the guy said with tax the RT comes up to $49 000 but I see some SRT8's on craiglist for $53 000,should I go for the used SRT?