if you wait till after the announcement you will get considerably less, but if you sell ahead of announcement you will profit, day of new 5s announcement old iphone5 price drops 100.00 off the back and 4s 200.00 price reduction. Play it smart market is saturated with many vendors selling iphone 5 unlocked under cost.
Staying with my 5 until the 6 announcement no more S models for me
I always try to resist getting the S model until I am slapped in the face with it every time I open my browser. Then, on preorder night, I get one.
AT&T usually gives me an early upgrade option every 10 months or so, and I can usually get my old iPhone off on Craigslist for $350+, so the S ends up costing me about $100+ tax. That's worth it to me to have the latest model with it's added speed and new feature (Video, Siri, whatever it may be).