I personally wouldn't buy this name for even regfee, because to me it just doesn't have a special feel to it which is required to sell names for a profit, a name I could see selling would be RapidMail.com because 'Mail' is more generic, commonly used, and sounds better in english combined with Rapid in front of it, making it a brandable. Good luck.
You might be right; but when you look at some of those domains listed and sold, they might be surprise you. People think differently based on everything. Even if you just give it away; it has value to it..
I think it's better to just buy expired domain. This way, you don't have to think and and put something more effort to create one SDN. Something meaningful; not just from passage etc... It should be from mountain, rivers and ocean..
As a personal opinion, it has value only with the right branding (this must be a high quality design), so you can sell this private (end-user) with no lower than $200. There are thousants (if not more) small couriers in us (for example), we've all seen bad branding but lucrative businesses, so there is room for this. If you sell this public... then yes, it has almost no value (no more than $50).