Actually I am a pack addict as well, but most of mine come from flea markets. I only have four what I would call Good Quality packs.

1. Maxped Fat Boy
2. 511 Push pack
3. Maxped Condor II
4. Grey Ghost 3 day assault pack.

The first two of course aren't really Packs, but they work for hauling around limited items with the 511 being about half again as large as the Fat Boy.