By having a cheaper festival you do widen those who have the affordable possibilty of getting a ticket.It is already massively oversubscribed how are you going to make it "more accessible" by making it cheaper? It is already phenomenal value compared to other large UK festivals.
The pitch I worked on with Fat Tulips garden selling vegan and vegetarian food was asked for twenty grand for a pitch, once it was £500.
Glastonbury rinses those who attend because the demographic it now caters for can afford lavish and extravagant prices for everything. That is not the festivals roots ..