You can "make" 10,000 gold in "seconds" but you can only do it once a week. There are 604,800 seconds in a week.
10,000 / 604,800 = 0.01653439153 gold per second. If you miss the first tick of gold in a round and are stuck on eternal x1, you are making 0.83333333333 gold per second (assuming you have 0 repair cost because you're trying to make money).
Playing on x1 forever is 50.4000000132 times more effective than this trick. lol