I'm sorry, but you're just wrong about who uses Festool tools. Yeah, some people with a boatload of money buy it because it's the most expensive tool.
You primarily see their tools in the hands of pros, because their tools are, in many cases, better than the alternatives. The value prop on the Domino isn't that it's the strongest joint, it's that it's strong enough for the application, fast, and repeatable. When you build furniture for money, that matters. You don't have to build too many frame and panel assemblies to make it pay for itself.
The dust collection on their sanders is outstanding. I don't do site work that involves sanding, but if I did, you'd better believe that I'd make that investment in a heartbeat. Not getting fine sanding dust all over your client's space is worth every penny of the cost.