Personally, I don't think they are worth any more than registration due to how obscure and targeted the domain extensions are. You have to remember that churches are non-profit organizations, and most aren't generating significant amounts of expendable funds for things like custom domain names. With this being said, I wouldn't expect much from them. Don't get me wrong, you may be able to get lucky and find a buyer, but I think the chances are very low. If you can get anything above what you paid for them, I think that should be recorded as a win in your books. Maybe sell them for $20 more than registration so that you can add the sales to your portfolio, and so you don't have to lose money every year having to renew. The sooner you can sell them off, the more you will make in this particular case. Either way, good luck with the sales!