The issue is paying attention. The Pro's should also have about twice the TBW capability and longer warranty, so the longevity of service and peace of mind are two factors.
I had no idea HP made a VR headset! Although looking it up, looks as though it is a MS/Valve collaboration that HP are the manufacturers of.
Yeah kind of taking the best of everything. I like the fact you dont need external monitors for controllers although that does mean that you can put the controllers in positions they arent seen (arms straight down or above your head) and you have to be careful not to use it in too strong of a light but the HP has the best panels of any vr you can get atm (although FOV could be slightly better of course). So far loving mine and can see why they were harder to get hold of than a PS5