Queer Venger
Dungeon Master is my Daddy
But what happens, like in our group, when you don't have the time and you have to choose one over the other? That can't be good for the edition when you choose an older edition over the new one.
Sales of 5e do not support the concerns you are having. In fact, it removes them. The success and popularity of 5e is what is giving rise to players exploring older editions, from what we see in DM's guild a lot of these pdfs are easily adaptable to 5e, unlike other editions. I myself have purchased a plethora of 1e and 3e books for my 5e campaign, this does not mean Im playing 1e.
Nothing is wrong with your group choosing 1e; but methinks doth protest too much...