Theoretical, not so atypical family at the top of the sport:
Mom has 2 hunters, oldest daughter has a big eq and a jumper, and youngest daughter has a small and a medium. The Palm Beach Sports Commission 2023 report says that the average WEF participant had 2 horses so that feels reasonable.
This imaginary family has 6 horses/ponies in full training so $18k/month plus vet/farrier/new equipment is around $225k as a baseline.
The average cost per horse at WEF was $40,060. Let’s say they take all 6 horses. That’s another $240k.
Throw in a few more multi week shows, a new horse because out of 6 horses someone is going to be retiring/coming up lame/needing to step down/etc. and annually, it’s probably a $1M family hobby.
The top 0.1% in 2021 made around $3M which is about the minimum where that family would need to be to start that type of lifestyle and it would require a comparatively very modest rest of their life. Not that living on $2M is nothing but if you can spend 1/3 of income pre tax on a hobby, it would require a very unique mindset.
Likely they would need more. The top .01% is around $7M annually, which is probably more of the starting point for the people you see picking up tricolors at the acronym shows week after week.
People in this bracket own multiple smaller businesses, are commercial developers, Fortune 500 c-suite, own a few auto dealerships or food and beverage companies, etc. However, by the time they have enough liquid I think they are typically becoming the parents or the grandparent funding the next generation.
Every single person I know on a true personal level who is showing to this degree has significant generational wealth even if they are also a doctor/lawyer/CPA/etc. Their $300-700k salaries allow them to live a very very nice lifestyle but it isn’t sending multiple horses out on the road or letting them pick up a $150k three year old prospect.