I wrote a thing on gacha because I wanted to think about how I play these games:
https://medium.com/cultural-panopti...se-free-to-play-games-a866dce1649a#.yn2zeeid8
I've just been thinking of how fairness and letting go has made me enjoy Love Love despite the fact that I'll probably never get a smile UR. lol
Okay, I actually had a chance to read this now, and it's a good overview to someone unfamiliar with the mobage gatcha system. Granted, I only play one such game -- this one -- and don't plan on picking up any more anytime soon, though a couple are still in my sphere of interest (like GBF, but last I heard the translation was still spotty and getting an account set up was a bit of work), so my perspective approaching things is a bit different from yours.
The part in the conclusion about ignoring the gatcha and just playing the game is what I pretty much had to force myself to do from day 1, because I knew if I even dipped my toe in it was going to be hard to stop (and because the first couple times I tried 10+1 I had shit luck... though with improved odds in 4.0, you never know). And so far, considering the proportion of whale players to others of different dedication levels, I feel like I've been able to get along well enough competitively with mostly the event SRs, some of which I've idolized.
I'd like to think I'm detached enough in some way to view the rarer gatcha cards purely in terms of their gameplay strength, not for which character/design they are, and thus as somewhat interchangeable, which helps with being able to fight off any minor pangs of regret for when cards slide out of the main gatcha window (and besides, they all cycle back around in limited scouting eventually, like you point out with the FFRK example). I guess on the flip side there's whatever value you can attribute to showing them off as your center and seeing them/hearing their quotes on the main screen, but the novelty of those probably wears off quickly so I manage to not worry about it. That and there's plenty of sites where I can view all the card art any time I want anyway.
So setting aside the gatcha entirely, the other main way players make use of the paid currency is through tiering the events, with its other main function -- to recharge LP. (This of course brings up the other element of mobage that people can find exploitative -- energy meters -- but that's something I'm not qualified to discuss at length.) Unlike the randomness of gatcha, technically, with enough time, money, and effort, any player can tier any event (provided that few enough other players have the same idea, of course). So this is the pay-or-ignore wall for a large number of players as well, and the one I had to fight harder to resist at first, when I was also still deciding if I wanted to save up for gatcha rolls or not.
My playing style for the first handful of months was to just get the event SR from points, which I think I was mostly able to do with natural regen, though I may have needed 1 or 2 gems once or twice. About five or so months in -- long after my first few gatcha rolls burned me off the system -- I had stockpiled enough gems from the many ways the game provided them for free that I decided to start tiering for cards whose design I liked, which were sporadic enough that I was able to still slowly have a net increase in gems. About four months after that, I broke the pattern and tiered for a couple cards to fill gaps in my team strength, and then after skipping tiering in the event after those two (for reasons I forget), I've tiered everything since. And I still haven't spend a cent on the game.
...well, this started as a short response to your article but grew into its own sort of rambling, half-coherent piece, huh. If the logic doesn't flow 100% that's probably because I'm half-asleep right now too, so I do apologize. Maybe I'll come back to it later and fix it up once I can improve my writing skills.