Well, the dilemma is money, tickets are still available, but i don't want to sit at Copse (the cheapest stands left, no GA) yet Stowe is a good 220 quid... sod's law would blatantly strike too if i didn't go to this race at Silverstone, cause no doubt it would turn out to be the last one!
Crazily enough, i dreamt i was at the GP last night, which is why i've been looking into it today. 
I was under the impression that the Copse terrace tix (the ones I've got) included GA - the extra cost was for the privilege of the option of going in the reserved terrace, rather than as a substitute to general admission.
On the Silverstone ticket info thingy it says "includes access to venue" which I interpret to mean general admission. As opposed to "we let you through the doors".
Or have I musunderstood you?

Sorry, I'm a bit of a GP virgin (my second time, first without parents)