Well I just tried the selling trick but it doesn't look like it's working for me. I bought every potion between bowerstone and oakvale with guile 5, and went for oakvale to do my business. I have like 65 of each potion, but when i m buying potion they cost around 108 and when i want to sell them back (the guy is then empty of potion) i can only sell for 70. What am I doing wrong? I need the gold to stay young(temple of avo), so i'm kinda stuck at the archeologist until I find a good way to get the money in
Edit : I now have max guile and the prices won't move. I wonder what's going on, the vendors offer the same price as the one they offered me with 4 guile, and no matter how much they have in stock there is no effect on the price...