Following on from a recent discussion here, I think a major problem today is that we're made to feel so guilty about non-productive pleasures. If we're just sitting quietly in front of the TV, or we're just idly surfing the internet, we feel we should be doing something constructive instead.
But why should we? Didn't Oscar Wilde say something about all art being useless, and that its uselessness was what made it so precious? We seem to have imposed the Protestant work ethic even onto our pleasures.