For some reason, I absolutely love games like this. Be it button king, Cookie clicker, or anything else, I can't help but to work my way through the game at a nearly OCD pace, until I finish the complete game.
I haven't completely finished this one yet, but it feels as if the Gold started out at a good pace, climbed very quickly, then just slightly mellowed out, making it harder for you to gain Large amounts of gold quickly for when you get to the higher numbers.
Now, I wish there were more upgrades that could be purchased, and perhaps more enemies that one can kill off to gain more gold and loot. I believe you should try and program a second game, with an additional character or two, and I'd love it just as much as this. I loved it through and through.
And yes. I'm stupid enough to do this for two weeks. :|