perhaps now Andy plays closer to the base line than he used to the lack of run back will trouble him less? I'm quite sure he can overcome such petty tribulations mp - the point is why should he have to when the other top players (one of which is seeded lower than him) don't have to? I also think Ferrer has cause for complaint as he is not treated as 4th seed.
I know it doesn't always work out that way, with all top players taking their turn at being on the lesser court as often happens at Wimbledon, but I'm going to assume that if Andy has to play on LA, then he's had his turn, and he should get preference for Ashe in later rounds.
Current ranking and seeding is an important factor, but Delpo's match against Hewitt is an obvious example where Hewitt's reputation and past form elevates the match above what it would be for a regular player of his ranking. Fed's matches are always going to be on show courts, although a slightly lesser show court should happen every now and then.