I go every year. Usually have a car in the top 50 section. No car forme to enter this year so I can go as s normal punter and not have to get up at silly o'clock to get my car ready :-).
I kinda agree that the tickets are expensive but if you compare it to any other event it's pretty reasonable. Eg football match. Music event.
If your a car guy there is a lot to see. Few years ago I had a go at the drift taxis (£10 per ride). It was the best £10 Ive ever spent :-)
Paul