That sounds rather high for a used Caprilli. When I was considering them, I found several in the 600-700 range. Also, they have CAIR panels that you either love or hate. For $800, I highly recommend Toulouses, or even Collegiates. The downside to these is that both (correct me if I'm wrong) have foam panels that cannot be reflected.
I had a Collegiate senior event that I adored, and my friend rides hunters in a Collegiate Diploma. The older Collegiates are very nice--before the gullet change systems, the leather was beautiful. I would hesitate to buy one of the newer models.
I'm a big Toulouse fan. I tried several of the newer grippy ones but hated the feeling of the leather. However, a friend sold me an older Celine with the full-grain leather flaps that I like much better. They hold their value well without breaking the bank.
Pesos as are also great saddles, but most are probably above the $800 mark used. It's still worth looking into.
Make sure the saddle fits your horse well. Good luck!