I think ppl would be more interested in sister that plays rpg's!
My fiance is a long time gamer, and in backward ville Amish town, the "seemingly" hardcore gamers in our age bracket (24-40) play angry birds or brain age or rock band, and whatever wii game is around cuz they have a wii for their kids.
while i don't subscribe to the theory that your significant other would be best doing hobbies like yours... it's cute that i can tell her while in a convo of 6 ppl that
"this stupid mob has aggro on me"
back on topic, i think grandia would be more accessable if it was ported to current gen stuff. IDK like PSN download, port it to psp/ds/iphone. all the Final fantasys up to 6 are ported to one portable device or another, just like i'd hate to take out the ps one (yea i have the tiny white one cuz the ps1 was so busted up) to play final fantasy 7,8,9. But still ppl with ps2's can still play those games, the problem is the damn memory cards. I think you need a ps1 memory card to play a ps1 game, and if i remember only like 15 saves per slot. Sony was really annoying with those cards.