I am not a huge concert goer, I've always tended to go to pubs more often. Mainly just because of the cost. But there are a few artists I've been willing to go out and get concert tickets for from time to time, especially if the venue is one I like (not too big, seats reasonably comfortable.)
I've been hearing more and more people over the last few years complain about the difficulty of getting tickets, and just recently experienced it myself. I heard tickets would go on sale for a musician I like, someone i've seen three or four times before.
I knew I wouldn't be able to get online until about an hour after they went on sale, but I wasn't too worried. Last time I saw him, it was a smaller venue, and I got ok tickets a few days after they were available - this was 4 years ago. He hasn't blown up in popularity since then, he's an established guy with a following but not Taylor Swift by any means.
Anyway - I went online an hour after the sale opened, and absolutely nothing was available. But they were available for resale all over the internet. Clearly a huge number were immediately snapped up for resale. I managed to find some for about double the price, though the better seats were far more than that. (Though I am still not sure they will be legitimate once I get to the door, and there isn't any good way to find out.)
In hindsight, I'm almost wishing I hadn't bought them - I was in a bit of a panic because I'd told my daughter that I could get tickets. But I feel like, until venues get some kind of handle on this, it's almost better not to bother at all. There is something really nasty about the whole thing. I also can't decide if I think the venues and artists are somehow complicit, or are also victims.