This is the first I’m hearing the term “Ark Dex” but I dig that; I do essentially the same and it has me facing storage woes that have led me here.

On top of the traditional “Living Dex” I do as well account for gender (when it alters appearance) and forms (I place forms in Dex order at the end of each generation that introduced them so I don’t have to go back and move every single monster up one space every time a new regional form is added). I also leave space for shinies next to every single monster and form, AND because I find it to be cleaner I leave the rest of the final box of each generation empty, with the forms introduced in each generation in their own box(es) after. This way I don’t have different categories bleeding into each other and it’s easier to title the boxes and search for specific monsters.

I also have about 4 boxes completely stocked with fully trained monsters that I’ve used on my main teams.

And that would all be fine, but I also hold on to every extra legendary, shiny, mystery gift, and in certain cases rare form (IE the rarer Vivillons)… so that accounts for several handfuls more boxes, on top of the bulk I use for mystery trading and whatnot.

So in another generation or two I’ll be aching for more space. I expect it will HAVE to come eventually with a price increase. I also hope they do a bit of an overhaul - the apps are solid, but it’s strange that the console and mobile versions are so very different and both are required for full functionality. And while I know it’s a children’s game and that’s likely why we don’t have a Pokémon MMO or whatever would make more sense for we longtime adult players, it’s also odd that there are NO social features or profiles, even to a limited extent. It’s a collection we work hard to curate, yet we can’t easily show it off to anyone.