I have a few online ideas to make cash I just don't find the time to write them. I don't know whether to learn the skills and write them, to buy in an idea and tweak and re-market it, or to employ someone to write it.
I could, pitch them to Darren Richards via his website posted by greenstiles.
He may then nick 'em!!
Back to OP, yes you can make money, how much I don't know but if you're writing it yourself what do you have to lose other the time, but a decent dating site will be way more involved than a simple site. Users expect stuff to work and work well right away, short attention span and the internet means they'll quickly move on.
I've made a couple of very basic sites but things have moved on, a lot.http://www.quickquickslow.co.uk/http://www.thehairlounge.biz/