He stated he wanted to go and said it would be fun or something to that effect, not sure how much more enthusiastic one is supposed to be before I believe someone. Basically, if I ask and you agree it's a done deal. It's a three hour concert not a major life decision. As far as paying for the ticket, I assumed the day of the show. 150 bucks isn't cheap but I'm in a position where i can float it. This isn't really about the money though.
As far as staying at my place, they were there for the weekend, but this was a few years back.
I should add we text weekly. Usually just some BS funny things back and forth but that's how we've related. Further, just last week he texted me and said "I just wanted you to know I appreciate your friendship all these years". Maybe I gave the impression this was someone I generally had little to do with but that hasn't been the case, at least not the past few years.