I say why not, do a reboot of the originals. If it brings in a new batch of fans, awesome. If it sucks, don't watch it. And nothing is stopping people of any age/generation from going back to just enjoying the original series.
I do like new and original ideas, but people would of course 81tch about that too....I'd rather have a remake of an original series with proven good storylines than a bunch of executive (and money)-driven storylines and ideas that are really just meant to sell merchandise and keep people with goldfish-length attention spans interested. I'd rather a well-executed remake attract future fans, than lose a bunch of potential viewers who aren't interested in watch the original series now that it is nearly 60 years old. Try and get any younger people to be interested in anything that old.