What's wrecked baseball for me is realignment, new franchises, player movement, the DH and, the only thing the players have any control over, steroid abuse.
That being said I'll still attend a few A's and Giants games this summer, mostly to harass other fans about how the players were REAL men back in the 60s, not some juiced out muscle freak who'll be dead by age 55 like today's players.