Personally there should be options. I honestly wouldn't mind if certain items they gave 2 options either for a single character or you could buy it for your entire legacy for a bit more money. If a speeder cost $5 for one character and lets say $7 or even $10 for all your characters I imagine many people would shell out for the $10 dollar option.
I imagine Bioware can easily change these things if they see they are not making any money.
Hmmmm, that makes sense, it would also be useful to the players who are only leveling one character, which is probably what a lot of FTP-ers will be doing with their limited character slots.