You should always use whatever computer fits your needs.
My ex-GF was (and still is) a big Mac person and was disappointed that when I got a new computer I stuck with a PC. (OF course, I pointed out that I could buy and throw away three PCs for the cost of one Mac).
But, then, I barely turn on my computer at home. I stare at a computer all day long at work. I'd much rather do other things outside work: hiking, radio, guitar, reading etc.