Well, I confess I'm slightly puzzled. I don't remember there actually being tests anywhere other than the big six: Lords, Oval, Headingley, Edgbaston, Trent Bridge, Old Trafford. I went to all of them, except for Edgbaston, funnily enough (I think it's an age old and doubtless irrational prejudice I have against Birmingham).
Or are you saying we have more tests now? Perhaps you're right. There was only really a tour by one country in the summers, as I remember it. But then it was six grounds, and a five-test series, most of the time. So it fitted beautifully. And it was certainly affordable. Again, as for football matches, I don't ever remember getting a ticket in advance. I'd just rock up at the ground — as I did for football stadia — and just always get in.
(Arrghh! just had to edit it Old Trafford as one of the grounds. How could I have forgotten that?!)