

Now you're starting to catch on! That's the name of the game, the law of diminishing returns, once you get to a certain level you need another $1000+ to get that next little 0.5% improvement.
I'll steal a quote and/or paraphrase from another member here. I don't remember where I saw it, it might be in an AH member signature:
"I spent a whole lot of time and money to learn that I didn't need to spend that much money to begin with"