I guess what do you consider "settle for less" and how do you valuate your domain? You have the original purchase price (or your annual renewal costs) but it seems that a lot of resellers or squatters tend to artificially inflate demand because .coms are the defacto TLD, yet no one is barking up their tree (no demand).
Yeah, I admit the amount I would settle for isn't scientific. I'm also not in the website squatting business. I just happen to have a couple of domains that I haven't gotten around to using yet.
It's more so, that I paid for the domain and pay the yearly renewal, and unless it's an offer that I would profit a bit over those total costs, I wouldn't consider it because if I happen to need a good domain in the future, it will cost me more to find one than to just hold onto the one I own and continue paying renewals.