Well I couldn't care less about going commercial, so the extra hassle of developping for mobile platforms is just not worth it for me. Doing this is my hobby, I don't intend to live off of it, I don't need the extra money quite that much. I'd rather sacrifice a few dollars here and there to do more of what I like the way I like at the pace I like and less stuff I don't like such as publicity, publishing deals, dealing with customers, etc. Besides I don't even own a mobile device to test it out, so it'd be really troublesome.
I think the reason most votes are for not mobile is mobile gaming is an utter crapshoot on whether or not you are successful. The market is so flooded that last I heard almost no games make a profit on either app store (with most averaging $1000 in sales in the end, or less. And yes, $1000, not 1000 sales. It's really that low).
If we are talking about mobile devices I'm not thinking about smartphones but tablets. On the last years I have used tablets clearly more often then my PC or notebook. I use the PC mainly for work (programming and game development belongs to it). But apart from that the tablet is my main device for spare time.
The last years I have bought several games for the tablet but almost none for the PC. So if I play a game this days, I will play it on the tablet.
That was the main reason for me to buy the Maker MV, because I can deploy my work not only for Windows but also for mobile devices and the web. But I must admit I have no intent to make money with that.
Long ago I was only playing on my computer with my gamepad/keyboard despite having a smartphone - fast forward 5-7yrs now, games have evolved in such a way that it makes things easier to play on mobile phones. Not talking about MMORPGs, but Rpgs(action/tactics/classic) and other genres(racing/sports/action...) which I play mostly on my tablet/phone when I have time. I find it less bothersome than to play on a desktop and on a PS4 - sure the experiences between both are totally different but the ease of playing on a phone/tablet has no equal. I'm planning to go on both pc/mobile but for the moment, I'll be concentrating on pc and port it to mobile once the pc sales are saturated.
I don't think I can handle using the real SNES resolution of 512x448 because resizing absolutely every interface element I had on hand by painstaking trial & error/guess and check (is there any other way?) is KILLING me.