My view is that straight pool, 14.1, is one of the only "pure" billiard games. By the Is mean, that in it's most basic state that it works as a game without having to resort to special rules to keep it interesting and competitive.
For example, straight rail billiards was ruined by nursing; hence balklines. I think billiards evolved to three-cushion, which is a pure game, but it's so difficult to score points that it has become uninteresting to many. Nine ball was ruined y the soft break to pocket wing balls; hence, nine on the spot, break boxes, etc.
Straight allows almost anybody to score points and have fun, and also allows for displays of virtuosity while remaining an interesting game. Maybe not so much if your opponent runs the game, but virtually all of the time you will have an inning and a chance to rack up points, no matter your skill level. And, the outcome of the game is decided almost entirely on skill, there's little luck involved in the long run.
It would be interesting to have stats on players' runs - maybe there is, I don't know - average points per inning. This is more meaningful than the highest number one's ever run, and a good commentary on the quality of the game.