Do people even use them? We have a really heavy one from the Oxo Good Grips line and I have never seen my wife use it once. All it does is take up a lot of space in the drawer. We have cabinets and drawers full of crap rarely used if ever but if I suggest placing such in the attic or basement and just leaving the stuff we use routinely in the kitchen cabinets it is as if I asking to commit bloody murder.
Yes, if you make your own pastry you need one. There is baking fad in the UK at the moment and I think lot of people are using them more. It's far easier to buy frozen pastry but people like the challenge of making it themselves. I know what you mean about too much crap - same here!! There is lots of it in the attic too - we need to have a car boot sale (or yard sale?) and de-clutter!