Well trophies are a grind and as most people can agree on, trivial things. I just try to balance things out as in I'll only play games I want to play and get trophies for those games, not go overboard like go out and buy every game that can get easy trophies. Also, by the time I get every single trophy for a game, I've pretty much done everything in the game and got my money's worth.
Dead Rising 2 is a good example. 90% of the game is optional so if you don't care to do everything, all you need to do is beat the game, which is about only 5 must-do things which is pretty much less than an hour and a few hours of idling waiting for the time to come to achieve the must-do missions. You don't even have to kill a single zombie in the game. With all the trophies, you pretty much do everything such as rescue all survivors, try every weapon (this is interesting) on every zombie and see the amusing results, etc. Without trophies, I wouldn't even have bothered to combine all weapons but after combining them all and trying them on zombies, I felt that i almost missed out on all the amusing deaths.
My advice on games such as Dead Rising 2 is that if the player doesn't plan on getting trophies for that game, they shouldn't buy the game simply because they're missing out on about 90% of the content.
But um, yeah, I don't mind trophies, it actually pushes me to see what I'm missing/too lazy to do in some games. The trophies I seriously hate are ones that require nothing but simple grind. AFAIK, Capcom games seem to have alot of this. Games like God of War make trophies fun to obtain considering you can get all of them without having to grind and in one playthrough.
Point is, they should make trophies fun, not a whorehouse of grind and timewasting. I consider myself a trophy whore but I don't think I deserve the title considering I have less than 300 trophies and only 10 games on my list.