I've actually sold all things I had for sale, on Craigslist in the last couple years or so, rather than on Ebay or anywhere else where I'd need PayPal... sure, it takes a bit longer usually, and you don't sell everything you want to (some items took several months, some never sold). But that's what has financed my DSLR adventure so far - I'm now at 1 K20D, 2 film cameras (1 Pentax, 1 Minolta) and about 14 lenses - plus other accessories like filters, 2 flashes, a nice bag...
There's life outside of Paypal
Only a few things were bought using Paypal - mostly some 3 cheap manual lenses I bought off of this forum, including my two beloved Rikenons.