Personally, I think it depends on the trophies/achievements, some of them can be very detrimental to the game (like most multiplayer ones) because they're either really hard to get without collusion from others seeking the trophy or they're completely irrelevant, while others can foster some replay value in a game or are just a fun little thing to try, like in Infamous 2, the one where you thunder drop off the highest building, or the ones for getting all of the blast shards and the dead drops, they encourage exploration (and the blast shards are helpful to the player) and expand the backstory of the game).
So it's not about trophies being there, but whether they're at all relevant and not massively complicated to get (but not handed out like high grades in Kindergarten.
So it's not about trophies being there, but whether they're at all relevant and not massively complicated to get (but not handed out like high grades in Kindergarten.