I can't really speculate on what end users would pay. I'm new to the broader domain trading market. Almost all my previous experience dealing in domain sells came from selling as a local IT expert to businesses in local small town America. Honestly, this is a topic I have some issues with regarding what I read in these forums. End user price speculation is almost always pie in the sky.
If I decide that I want to make the effort to market a good name to the business community, then it's not going to have a whole lot to do with the value of the name. I'm going to be base it on the value of my time and effort. Are you going to invest in stationary and business cards? Buy contact lists to send out faxes, letters, or email? If you are going to sink 100 hours into marketing this site, then you definitely need to require $x,xxx or higher to make it worth doing. Are you just going to sit on it on the chance an end user will approach you? In that case, high $xx and up is at least somewhat attractive.
The site name makes me think of Globe Trekker or the idea of college kids backpacking across Europe. A totally different slant would be to use it to actually track Europe... Currencies, commodities, futures, employment rates...