I have an ASUS Transformer and love it, but I have used the camera just once and never have used the GPS. I would think that is pretty common usage pattern for most tablet owners as they use their phone for both of those tasks.
I imagine it's like people that buy an SUV for the potential off-road capabilities.
I've got a Nook tablet without the GPS feature and I'm able to get my location from the wifi connection. It's not as accurate as a true GPS lock but good enough to get me information on the shops around me.