I'd still by VC2 and 3 if they HD remastered them for PS3. Not really likely to buy anything else with or without trophies. Though MH3P is a contender, and Daxter, and God of War would be possibilities too.
It's simply a cost benefit thing. They obviously calculated the income generated from increased sales with trophy support won't cover the development costs for putting in trophy support and the abstract cost of a potnetial loss of integrity of the trophy system. Find some data to prove them wrong and they'll change their mind.
Trophies given me replay value for games. But if a game is the right price and I like it well enough then having no trophies isn't a reason to avoid the game. I think it's odd choosing not to buy a game purely because it has no trophies. If you want game X and game Y equally, but you can only afford (time and / or money-wise) to buy one of them, if one has trophies and the other doesn't then I'd say go for the trophies. That's about the only time I think trophies should come into a play when deciding whether to invest in a game.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix
