Forever Oleg :
Do you have the appropriate monitor to get 100+ FPS. Few monitosr today can actually display 200 frames. Your standard monitors only display 60 frames.
Even monitors with faster refresh rates are usually 144Hz. I've never seen a monitor listed at more than that. I agree though, anything higher than your monitor can display doesn't make that much sense to me.
That's not to say getting 200 FPS hurts anything but as long as your framerate is at least as high as your monitor's refresh rate I don't see the point in paying to upgrade your GPU.