I can't believe you'd not been to a Test in the flesh either!

Cost has a lot to do with it: the first four days for most big series are sold out, and the ECB is not renowned for sensible pricing policies at other times either. (Case in point: the SL series, where there was really no reason not to let in more people at a cut price.) Not living in a big city and not having a car, public transport is also a major difficulty. New Road (where I have been!) is pretty easy, at least.