I see some of you guys building computers as if you are a top level engineer and need as much computing power as possible. Some of you opt for the highest speed lines money can buy... I remember back in the 90s I was trading with the 80486 and a dial-up line. That seemed to be enough. Why isnt a $500 box or laptop with something like an I3 processor and a few gigs of memory enough? Why do you need a supercomputer?