Adding regional names to the passenger commodities would probably cause more confusion as each has at least two of their cheapest buypoints in different areas, usually somewhere within Gallia or the border/edge worlds, even the names of the commodities are misleading.
Coincidentally me and a few chaps working on an OS&C faction have been gathering some suggestions to improve the passenger commodities in general, if theres anything you folks would like to contribute feel free to PM me or shoot me a message on skype (details on my profile) and I'll add them to the list.
Also Xoria, if you have a bit of spare time at some point I'd appreciate any pointers you can give to make the suggestions workable. Cheers.