Since I just started hammocking this year (Thanks all!) I'd have to say:
1- ALL my hammock gear, and all of it was bought here. Either off the classifieds or thru sponsoring vendors.
2- Osprey Exos 46. I REALLY like this pack.
3- Good clothing. I started buying better clothes this year. I can't believe what a difference GOOD clothing, socks, jackets, raingear, head gear, etc makes.