It comes to the point where you need to decide whether you enjoy fishkeeping as a hobby any longer. Realistically, if you're not willing to do the maintenance, you shouldn't be keeping fish (not saying that's you, just a general statement). I got to the same point as you a while back. I didn't enjoy them, I dreaded maintenance, was ready to get rid of them all. I had expanded from 6 tanks to 14 and it just wasn't for me. I tore down some tanks, got back down to 5, now I'm enjoying them again. I'm planning a reef tank now, which has got me even more involved in my hobby. For me, changing things around a bit sparks a little more interest. If it ever gets to the point that I don't enjoy them anymore, and I can't get myself motivated any longer, I'll get rid of them before I slack and cause harm to them.
"What, exactly, is the internet? Basically it is a global network exchanging digitized data in such a way that any computer, anywhere, that is equipped with a device called a 'modem', can make a noise like a duck choking on a kazoo." - Dave Barry