I actually got to see Cats when they came to Lowell, Massachusetts a few years ago. It was fantastic. If I ever had the chance to go again I would. It's a show that is well worth seeing. I didn't have any trouble getting tickets to go, but I was also a contributing member of the Lowell Memorial Auditorium and always had first pick for tickets before they went on sale to the general public. Ah, you just gotta love that.
But seriously, if you ever have the chance to see it go. You will love it.