I'll probably play a bit of Arena when it comes out. I played a fair bit of MtG2011-2014 a few years ago and actually didn't mind the format. Sure, it's a lot more limited than real MtG, but it's probably slightly broader than Limited or Block in some ways. A lot cheaper too.
It does mean there's a far more limited meta to work in, but it does help stop some of the more BS decks from cropping up. Yet there's still some fun to be had. I can't stand the MtGO interface, but their more consumer style products are actually pretty good. Even way back to the 1995 Microprose edition. Certainly not perfect, but quite playable for a fairly complex card game.
There was even unsupported modding of MtG11-14 floating about years ago, that also worked with the free demo version, if you didnt mind just playing vs the admittedly poor AI.
With all the anti loot box controversy raised recently, it's surprising that there weren't too many MtG (or even Hearthstone) comparisons made. Every pack of cards is essentially a loot box, with potentially hundreds needed to get a full set. Then again, people actually like MtG and HS, whereas they weren't too thrilled by SWBF, even without the loot box system.