It's a fair enough response, sure. My reasoning:

a) I'd be paying more for a touch screen that I don't want. Whatever the cost, I'd rather have the money

b) Does whatever OS I'm running know I've got a touch screen? What's to stop it taking advantage of that? What's to stop it essentially requiring I use it?

c) Even if I don't use it, buying a laptop with a touchscreen suggests there's a market for such a device. I'd rather not add the weight of my support.