frag swaps can be lots of fun, but buyers and sellers need to beware. Our local frag swap participants usually price there frags between $5 and $20 depending on size and local avalibilty of the specimen. Buyes need to instpect frags for hitchikers, expecially red bugs wich can be very difficult to see through a plastic bag. I usually bring a photographers loupe with me and inspect any frag that i might buy, after that they go into a Quarenteen tank for a month to make sure that there healthy and bug free.
HTH