I searched ebay earlier this AM. Found 1 Spec-Ops Brand pack for $125.00, not much of a deal. As with all military/tactical gear you have to be very carefull of things like USGI type, genuine MOLLE pack. Or even mentioning Spec-Ops in the item title, but not in the deatiled description or ____ like. When you look for quality gear on ebay ( Maxpedition, Spec-Ops Brand,Tactical Tailor,Paraclete or even real USGI) you won't find very many great deals. Not to push CTD but they have an excellent return policy. I've sent stuff back several times and never had any problems. Between nice used quality packs from the thrift stores and CTD or Sportsmans Guide I've never had to lay out a lot of cash.
FWIW, my 2 top choices would be the TT pack on sale or one of the copies that CTD sell.
Dave