Greg I think a lot of us hit a wall in this. I was like you a while back and was always looking on CL, ebay, etc. I have taken a step back and honestly havent bought a new pair in months. I wish you the best if you decide to leave us.
Good luck man!!! I was in the same boat for the first week and a half after joining, but realized the same thing you did, had to really back off... If you check recent purchases though you will see I haven't done a great job of cutting back but I am trying