I picked it up for $4.99 USD yesterday
Also, if you're using Early Access for funding ... then you're doing it wrong. That's just embarrassing and it's sad to see these guys did it. Early Access is supposed to be a test platform, amongst other things. Releasing something early just to garner funds is fucked up.
Normally I'd recommend this, as I'm quite active in the Emulation scene, but Square put in a lot of love and work in this release and deserve to be rewarded. It's an absolute worthy purchase, but I agree, emulation does offer some of the best ways to experience releases from a console.
That being said, emulation isn't perfect. Even emulators designed to be accurate (Bsnes/Higan, Mednafen, etc.), will never be as authentic as the game running on the proper hardware.
Multiplayer would add nothing to the story-driven game that has no difficulty in anything.
It would add fun to the game. The game becomes a bore when you realise the whole game is about farming resources with miniscule shreds of story throughout. If I wanted to play a story-driven game, I'd dive back into the myriad side quests of The Witcher 3.
There hasn't been since they took out flash sales and daily deals, those made the sale good.