Yeah I loved my good old C64 - had so many games for that there are probably loads of RPGs that I had but can no longer remember - not even going to count the old read'n'type adventures from the early PCs either (mainly 'cos I can not remember any of their names) as I am not sure they are what most would class as RPGs.
I held on to the C64 for ages and skipped the NES/Master system era so had to play all those early RPGs on the emulators much later.
I loved that C64 as well. I can't recall the names of the games I had (but I know some of them were really bad) or other games I played on other older PCs. I skipped the entire Sega console line but stayed into Nintendo (but still played very few RPGs that weren't Zelda-ish).
I have many oldies to play through goodoldgames and emulators. I still have yet to play some of the other Gold Box games - how many did you get a chance to try out if I may ask?
What I can't remember is the first turn-based RPG I played.