XTR is the highest level that Shimano makes for MTBs, while Deore is mid-range. Remote lockout is sweet, but if you're mainly doing paved trails and not a lot of climbing, it's not really necessary. Remote lockout comes in handy when you're climbing hard and you're out of the saddle. It keeps the front end from rebounding and wasting energy.
FYI.
And check your PM box.
