Yeah even these days it is a really rare thing. I'm not 100% sure if I've seen anyone other than me using MF either, but there's bound to be people out there as the local camera store has a pretty well stocked supply of 4x5 and 120.

Part of the reason why sometimes I don't enjoy using 4x5 as much as I should, because as soon as people see you doing it, everyone starts staring, and I don't like people staring when I'm shooting. It's something I need to get over.