I'm working in that space, and sampling from the ones I've dealt with, I'd replace some with most. Some of the ones I deal with are also running those XPs with

I'm working in that space, and sampling from the ones I've dealt with, I'd replace some with most. Some of the ones I deal with are also running those XPs with old IE versions, 6 & 7. This is because they bought, then never upgraded, systems that won't run right with newer browsers.