Activate the game on GoG, get yourself some cheap external memory and throw the game's install executable on there. That's probably a way better idea then lugging discs around. Discs can get damaged or lost while you're on the road.
We all wish we were still living in homegaming's golden era, but those days are gone. The game has to be profitable and the cost of stuff like printing hardcopies of manuals, shipping copies to brick&mortar stores and even the cost of developing the game itself has gone up compared to the good old days.
As for the state of the release build. Every dev wants the game to be perfect. But making bugless code isn't easy: It's time-consuming and as a consequence of that expensive. At some point it simply has to be "good enough" beause the money has run out.
Also I don't mean to sound condescending, but if you're suggesting what I think you're suggesting and games back then didn't have buggy releases, then you have some rose-tinted glasses. Baldur's Gate 2 for example was a mess on release.