I have an older Dyson stick vacuum that works perfectly fine. The batteries for it are reasonable in the aftermarket, but I got an adapter that lets me use Milwaukee batteries and I have plenty of those. I have only had to replace the catch for the canister. I got it for $20 at Goodwill.
My mother has a Dyson from like 20 years ago that needed like $80 in parts to fix to make it just like new. It just needed the canister latch, after being dropped down stairs, as well as the main hose and the secondary hose.
Are they good vacuums? yes.
Are they bulletproof? No.
Are they reasonable to repair? Mostly, but major parts are expensive, but we are talking about a $$$$ vacuum.
They aren't a Kirby, but they don't cost Kirby money, especially if you buy a Dyson second hand and do a bit of maintenance. For US people, shopgoodwill.com has Dyson's for sale second hand for cheap, like $50 for a stick and under $100 for an upright.