Prorookie34, I suggest you do a closer look at the $$$ for running small sprint cars - I can't speak for 1/4 midgets, though from what I've seen, I expect the price is pretty reasonable, maybe about the same as a champ or a bit more, but having owned and crew chiefed on flat and champ carts before moving on to ownership of a 600 micro, I can tell you that the "small sprints" can get pretty expensive. And, if you want a real eye opener, price the engines used in the 250 - 270 micro sprint classes - you can buy a brand new champ kart and 2 good engines and have a fair amount of money left over.
You don't even want to know what it costs to run a full size sprint - even the 305 sprint class, which has restrictive engine rules that help really limit cost, our budget class for the full sized sprints, swallows enough money to finance a small fleet of champ karts, even if you start with well used roller. A number of years ago I crewed on a 358 sprint here in PA; the driver, who had just graduated from my 600 micro, was given a mother's price on a very competitive 358 engine because, as a senior in high school, he also worked part time for the engine builder, and it was still $18,000. And that was more than a decade ago. Lucky he had good sponsorship.