Amazing, what people consider reasonable. Try flying to, say, Sacramento - which as state capital of California certainly justifies comparison to EDI. Landing fees, $0, nav fees (huh?) $0, parking, $0, handling $0. The FBO there seems to stay in business so I guess they must make money, which comes from the profit on fuel. But you don't have to buy any if you don't want to. US pilots complain bitterly about FBOs that charge you, say, $20, waived if you buy fuel.
The above is true pretty much anywhere. SFO will cost you quite a bit, around $300 currently I believe, in other words a little more than EDI. But the last time I went into LAX in my 182, it was $40 for handling and no other charges. No 100LL though, and I think my plane, hidden away behind the hangar, was the only piston plane on the airport for the whole day.
Of course Europe is vastly more expensive and there's nothing to be done about it, but that doesn't make it *reasonable*!
n5296s