I use a Permobil F3 with a lot of additions. The price I mentioned is the insurance price in the US and in many cases self-pay will bring it down but it's often still prohibitively expensive. I had to self-pay for an add-on on my current chair and that was $2400 itself. Oftentimes in the US, manufacturers will only sell products through a licensed DME so you have to pay a markup there too.

Yes, I was clearly looking in the wrong places. I can see the Permobil F3 listed in it's base spec for ~£10,000 over here.