Unless you buy in bulk, your run-of-the-mill office tape already comes with its own handy dispenser. While not as stylish as this Strip dispenser, it also doesn't cost you $US32 for what is essentially a flat piece of aluminium.
I'll give credit where credit is due, though. So kudos to Raumgestalt Studio for finding a way to mark-up a strip of metal. While I doubt they're rolling in the dough, I'm sure they've convinced at least a few people to pony up that asking price.