I was you this summer and while there is gouging going on price wise, I found a few good horses well under $10K.
Ended up with a fully broke 4-year old
registered quarter horse (registered means you know their true age), freshly shod for $5800
Used him mid August to mid October and he was everything I paid for and as nearly as well broke as any I have.
I looked seriously from May to August to find him and turned down quite a few. Had to travel in about 100 mile circle to find what I was looking for. Looked at some very green horses that were priced the same. As soon as I started to work them (catch, lunge line, ride, trailer load) very evident what they were. Buyer beware and don't feel bad about walking away from one that isn't just right.
Also, download the KSL classifieds app. They're huge and centered out of Salt Lake and have a lot of horses in the intermountain West (SE Id, N. Ut, W Wy) on there and that is cowboy country with some good horses.
Unless something's changed since August, can't imagine you have to pay $10K. Usually this time of year, prices drop. I see a guy in our classifieds selling all his horse gear as I type this. Feeding horses all winter noone is using softens the prices. Or should. Some people aren't serious about selling but hear the market is hot to they list them high. Just offer less and see what happens. You're looking for the guy who needs the money enough not be crazy high priced and always haggle some. (my guy dropped $200 and shod the horse in our deal--he was a farrier btw)
@BKehoe05 "Horses can be cheap, broke or sound. You can have 2 of the 3 but you can’t have all 3."
good advice.