You are of course right in that no one can demand that you spend that ISK, effort and time to get the 'correct' items just for RP purposes, Ulf. Still, if you are involved in some sort of RP exchange/business or whatever and suddenly bring a cargohold full of some lesser item instead of the agreed upon item, I'd certainly be dubious unless you'd OoC cleared this stuff beforehand.
Arrangements can of course be made, but unless you have a damn good reason for it, it'd be cheapening the whole thing if you don't at least try for the real stuff. There's exceptions to all rules, but my personal rule is to put my time, effort and ISK where my mouth is, RP-wise. If I can't afford it or don't have the time to get it, neither does my characters. Simply because if I suddenly start pulling things out of my ass and pretend, the people who actually did take the time and spend the resources to get the real deal completely wasted their time.
And yes, the majority of the times when I went to TLG, I had my characters in Goinard. The same applies to when I had characters go to the Chained Amarrian or whatever it was called, and the rest of those places.