I saw the £40 and thought that’s not right but it’s true! They only have one on Amazon right now for £40.
I wanted to share this link though:
Exercise Wheel & Stand for Hamsters, Rats & Small Rodents | eBay
That’s £23 for plastic Trixie wheel on eBay or for a pound more can get the wooden one:
Trixie Exercise Wheel For Degus/Rats 33cm - Wood & Cork - Smooth Surface - Quiet 4011905609249 | eBay
Although I have heard a lot of mixed views on wooden wheels. I’d use plastikote to protect it and I’m not sure but I think I’ve hear people say they wear quicker so start making more noise. I could just be making that up though!
I personally like Trixie wheel but I’ve only got a 28cm wheel version so I can’t comment of 33cm and I’ve never had a more expensive brand to compare against. I know there’s a lot of great wheels just I think you’d be looking minimum £30+ for something silent.