Wot?
So £1500 - £3k for a Windows laptop which is locked down to the point of making it near useless like the old RT tablets unless I cough up another £50 for the privilege of making it do what I want.
May I make a counter suggestion to MS?
How about you? Get. To. Fuck.
Take a long walk off a short pier
Etc.
Why not just try, a little, to not make something that is so blatantly grasping for every bent copper in our pockets. Why not just make a fucking tablet with a meter attached we can feed pound coins into? Ok it's not pretty but at least it would be fucking honest.