Don't expect to make good money parking with Sedo. It took me three years make the same amount of money that I earned at domainhop in only three months
Depends on your domain names a lot. One of mine was generating enough traffic and clicks alone so I could pass their payment threshold and get paid every month, and I was doing really nothing to promote it. Absolutely nothing, and it wasn't in the search engines either. By the way, this is one of the things I don't like about sedo business, your domains will most likely be excluded from Google index, and when you decide to do something about the name and build a website on it, the fact that it's X years old has no role, it's still like a virgin domain.
Sedo does help with unused domains. Even if I plan to develop a site a few months hence, I make it a point to park in till then.
You may use sedo as an escrow company, yes. They are reliable for that kind of service although may seem not exactly cheap.
I agree that there is never such a thing as "too much" - every domain making automatically more than the register fee + hosting expense is a winner, right?
No, sorry but I must disagree registration fee + hosting expenses does not constitute a winner. Winner is a company that can earn you a living. That is my opinion
well rmartish, so every single cent in your bank account producing less than enough money to make a living is a loser then, right?
It's not a loser but just making it to pay for hosting and registration is not a winner. A successful company needs to be able to compete and no just make it. If hosting and registration where all we aspire for then our goals could be achieved in days or weeks. Our business needs to have long term goals. That is how big companies think.
Yeah, I know people that have a lot of domains, just to have them, but don't use them for anything. I'd reg as many as I feel the need for, as long as they're serving some purpose. I own 4 of them right now, and they are all for different things. Right now, only one of them is even proxy-related =)