I think there's a bit of a misconception about the idea (or understanding) behind the term 'episodic'. All it really means is creating several products that are thematically connected where each podocut is a shorter experience and thus produced in shorter periods. There's no reason to think that when you play an 'Episode 1' game or watch an 'Episode 1', eh, well, episode, you're buying into a grand story that might never be finished and leaves you wasted, spent and depressed by the wayside. A lot of shows, books, comics etc. have episodes which are not part of an arc yet still deliver interesting stories about a set of characters that we know (or might know).
Personally, being 33 and having 2 kids I much rather spend 5 dollars on a shorter (5 hours) game that's still fun and has an interesting world than on a massive grand 80 hour festival for 60$ which I doubt I'd ever have time to finish. And if said game (5 hours) has another game set in the same world with the same characters that is made a month or two down the line, why the hell not?
How many people here watched Firefly?
Did you all wait for Mass Effect 3 before buying Mass Effect 1 and 2?
Do you not buy comic books AT ALL? (after all they very rarely finish do they).
How many people here haven't watched any Game of Thrones episodes? (other than me since I find the books utterly boring but that's another topic and don't flame me, please

)
I would say that most people watch episodes and consume episodes as they come because it's easier for most of us (at least those with jobs, kids and wives - though I don't know how anyone can handle more than one of those

)...