One of the long-standing sacred cows here at Insomniac is framerate. We've long viewed a solid framerate as both a sign of a quality product and professionalism as developers. It's always been point of pride in our work and considered an extremely serious part of our development process," wrote Insomniac's Mike Acton in the developer's official blog.
"However, during development, there are hard choices to be made between higher quality graphics and framerate. And we want to make the right choices that reflect our commitment to providing you with the best looking games out there. To that end, our community team did some research into the question of framerate. The results perhaps confirmed what I've known for a long time, but found it difficult to accept without evidence."
The community team's findings suggest that a higher framerate does not significantly affect a game's sales, nor does it affect revew scores. However, graphics do have a significant impact on the final review score, and can even affect the gameplay, with gamers perceiving better looking games to be "more fun."
Based on these and other findings, Insomniac has come to the conclusion that framerate is "important, but not critically so. When there is a clear choice between framerate and improved graphics, graphics should win. The correlation with review scores is clear."
So what does all that mean? According to Acton, "It means that framerate is still important to us here at Insomniac, but it's not on the same pedestal it was before. And that Ratchet and Clank Future: A Crack in Time will probably be Insomniac's last 60 fps game."