Betcha you'd be one HAPPY man once you have all those added goodies that the SG doesn't have including the Limited's 103 Power, Oil Cooler and etc.
I'd say...Go for it cuz you won't regret and look back once SG sits in the used bike department. Well, You may miss it for a while and sporting the biggest smile you ever had in a long time, LOL.
If I were lookin' (what am I sayin' - I'm always lookin':+), I'd be lookin' at the Ultra or the Ultra Limited. Probably the Limited because of what "deafUltra" says above. You get a whole lotta motorcycle for the money.
First is the new frame. I went from a 07 FLHT STD to a 2011 FLTRX 103. I wanted the new frame & the 103. For me I don't need the tour pack & lowers. Ask youself if you need them.