What make a domain expensive/cheap?

[tcm9669]

As title says, what makes a domain expensive or cheap? Just the PR effect the price? I think that the name matters too? or not really? Please help me, thanks. I would like to know what things make a domain expensive.

Thanks
Tcm9669

[Adon]

I think its the ff:

1.Name
2. length
3. Extension
4. Traffic
_________________
http://domainstations.com - Get your site listed for a very cheap price.