In advance, this guide won't make you rich but will help you get some extra plats in the bank.
100 Prestige buys 1 Crypt pet which is the only PVP item that does not sell for 1 copper but for 45 Silver
Per win/lose on average you get 200 Prestige.
Do with this information whatever you want.
Myself, i put my bot on every 5K Prestige i buy shitloads of those things and vendor.
If you have more accounts you can abuse this quite badly and make some real plats. myself i use 3 accounts and net quite some money every hour. (Didn't calculate how much yet)