Johns is the only one in the area close to LG. I don't deal with them much. I doubt most will take older stuff in for trade, as they would have to warranty something they know nothing about. Some will trade up every year if you work a program with them, or have bought from them before. Better off selling them on C/L anyways, you'll get more for them.
I bought my son a real nice Browning on eBay last year, it's a chance, but any used bow is. Never know how many times someone might have dry fired it. I bought mine off there as well, but a new left over from a shop in Minn. Saved over 150 from the retail.
Good luck with the search.
The shops listed by others all have good reputations. I used to buy all my target and hunting bows from Lemmes in Albany. They have some good deals in the off season on hunting bows.