Some instructions and a win con would be helpful. The objective seems to be to purchase as many objects for as little as possible. I found myself putting one gold and spamming the buy button because i optimize the fun out of my games.
Suggestions that you do not need to take
1. To discourage the player from spamming, there could be a penalty for failing a purchase (maybe losing money or stats)
2. As an objective, there could be a goal amount of objects you need to get. Maybe you can sell the objects to get more gold, in which you can buy more objects. The infinite loop could be to go higher and higher with more expensive items.
That being said, thanks for making!