Is an FPGA the Best Option for High I/O (120-150 Input) Prototype?

In my earlier post I didn't include the environmental factor... There will be a number of electronics close by that may affect the overall product such as LCD panels and power supplies but since this is a prototype, outside environmental influences will not play a role as it will be prototyped in a simulation environment and not a real ****pit.

Edit: For some reason my previous post did not come through so this reply may not have made sense. Does anyone know why the reply did not post to the board? I didn't receive an error. Although for some reason my words are being censored. It doesn't like my reference to aviation :-).