I think a lot of people like me buy domains planning to do something with them. Eventually we realize that time is limited, but we still hang onto the hope of eventually finding the time to do something with the domains.

I'm guessing they are overpriced because people don't actually want to sell their domains, but they would happily do so if someone was to offer a good chunk of cash for them.

That's my logic anyway. I never bought any domains with plans to sell them, but this site was so easy to use, I threw them up there and put big prices on them, just in case :-)

There are already plenty of services for domain squatters out there.

I wouldn't hold out much hope.