I personally disagree it should take $$$ to show. I'm showing next year on a 2k budget for 5 shows. TOTAL. And they are a-rated!
Learn to braid yourself! Learn how to trailer your horse. Don't show long distance. Do everything yourself and you can save a ton!
It's depends on the area do your research for where you aim to go.
A training show? As in training level, dressage?