Morrowind you can craft potions with ridiculous value, then use that to pay for levels from trainers and buy the best items
Did you actually play Morrowind? I can't think of a single one of the best items in Morrowind that was available for sale. You either had to steal them or they were loot. Also most of the vendors in that game were pretty broke. To sell anything of "ridiculous value" You had to find the mudcrab merchant out in the middle of nowhere. Gold didn't trivialize that game at all. Exploiting alchemy did.