I would evaluate both selling and trade-in as trade-in offers a sales tax advantage (at least here in Michigan).
Regarding all of the other "anti-SRT" comments. Take them for what they are worth. Most have not owned both and are only speaking from one perspective. I am currently contemplating selling my RT/10 as I am not driving it much. The SRT just has too many advantages.
I concurr with what was said here. Being one of the people who have been lucky enough to own a Gen-2, and now a Gen-3, I must say... the more time that goes by, the more of a "hands down" decision it becomes. The styling is a toss-up to me now... but the "rest" of the package puts the SRT over the top. I would like another GTS in the future though, dont get me wrong.
I only have 2 b!tches about the SRT... rear visability, and the fact that Dodge was too lazy to put paint protectors on the sidesills. other than that