Off topic, but perhaps related to the previous post (which is a hopeful
post, to me), on a Canadian chess message board some years ago a Canadian
inventor of games currently residing in the US argued that at least one
over-the-board competitive event (ideally with cash prizes) might be held at some point, which would involve the playing of more than one type of
chess variant, perhaps including chess itself. That is, much like there are
competitions held that involve the playing of more than a single Poker
variant within one particular face-to-face Poker competition.

The game inventor's idea is to some extent already being carried out
online, e.g. in the case of Game Courier on this website, but note that in
that case the contestants agree to the chess variants that they will play,
if an invitation from a fellow player is issued. That's as opposed to what
I thought the game inventor had in mind, i.e. a relatively small set of
chess variants, as selected (in advance of such an event!?) by an over-the-board event organizer, to be chosen from by the players (or else all the chess variants in the selection would have to be played by all the players). 

What I thought he had in mind didn't seem like such a good idea to me since
chess itself normally takes a lot more study to master than, say, the basic
form of Poker (or any of its variants), and I assumed that learning any
chess variant worth playing might also take a lot of study, so that a chess
variant player could not hope to be truly skillful in more than a handful of chess variants at best. However, I have now combed through
chessvariants.com for some time, in looking at variants that are on various lists given (aside from my not looking directly at much of the main alphabetical list), or in looking at popular variants as found on Game Courier. That was in the process of selecting variants with existing presets that I think I might like to play on Game Courier. I am now wondering how fundamentally different from standard chess that a lot of the most viable chess variants really are.

On the other hand, for the 17 variants (so far) that I think I might wish to play, if I start playing on Game Courier again at some point (after some looming dental work), I was happy to see that they each fit into at least 1 of 11 categories in total (some of which were designated by me, such as "10x10 board variants"). That represents considerable variety, for my currently preferred 17, plus 11 are games that I've not played against people more than once or twice online or offline, if ever (one being my own Sac Chess variant).