Back in the day, before Internet, or my own income, games were are thing shared among my neighborhood. It has always been the case that no one player was the best at every game, and back then it was clear that whoever was the keeper of the game and had the most time to play it was usually the best when the next time came to play it. Lending friends games was usually a good way to get them to be better than you next time you faced off, if they were a good player. I still see the same trend now, since no matter how good you are, even at a particular genre, if you haven't been playing a particular game a lot you'll tend to lack the edge against those that do. But any true gamer has this minimum skill, even when playing a game they never seen before.
I could name plenty of multiplayer games where I had a clear edge for a particular time, but even when I was unbeatable this was always a state of flux, if the game was good enough to keep us playing it. But what I was really known for back in my neighborhood was for my skill playing single player RPG's. Players would come to me with save files they had managed to get themselves into that seem unwinnable, and I would get them out of it, every time, first try, even if I never played the game before. I relished the chance, since I would never play so bad to get myself into these situations... and as good as my track record is, these situation where battles I wasn't sure I could win -and I love that feeling.
Lot of people like to say there is no skill involved in playing an turn base RPG, because of how easy many of them are. Well, try taking on one of the final dungeons, with no way to back track, no method of healing, sub-par equipment/level, for a game you've never played before, without any Internet strategy guide. You must be flawless in your execution, decision, timing, perception, recollection, and prediction. Just like being good at any other game.