Absolutely agree with this. Glastonbury is simply on a different scale to any of the smaller festivals, more like a medium sized town full of performances and craft of all kinds. You only see the big stages on TV and in the papers but there is so much more. I've read there are around 100 stages in all and I can believe it.
Something I've learnt over the years is not to have a long list of must-see bands, as you will never get to all of them. It takes a long time to get from place to place, and you will get distracted by other stuff you find en route.
I love a smaller festival too - last year I really enjoyed End Of The Road - but there really is nothing like Glastonbury. Oh, and I think the line up this year is a bit lame too, but it really doesn't matter.