there was a thread some time ago about this, but i thought a fresh one was in order since the numbers have changed a little bit. before the end of 2014, it was 83-point-something% 3ds to 16-point-something% vita. now it's at an even 84% 3ds, 16% vita. as vita sales slow down further (3ds is also down yoy but could see a new 3ds bump), what will the market share #s end up looking like in, say, 2017, when both handhelds will probably have reached the end of their life cycles..?

About the same given 3DS was significantly down YoY in 2014 and will be again this year. Vita was pretty stable last two years I believe, although I may be wrong as that is just off the top of my head.

The same or Vita will gain a very slight MS

13% - 87%

Especially since the NEW 3DS is coming out across the globe ( besides Aus and Japan).
It looks like the PSVITA TV didnt help ALOT ( im guessing we could compete it with the 2DS ) And i dont think Sony would make another Version. But PSNOW might improve it sales.

And the NEW 3DS will Most likely get much more exclusive games, which would make 3DS owners buy the NEW one.

Even bigger than now(possibly 90%)!New 3ds/xl which outdid dsi sales in the same time frame in Japan,it also outdid ps vita's sales in 2014 in Japan(Psvita's strong market) in just two months and half (1.238m vs 1.168m)!3.2m 3ds were sold in japan in 2014 from which the 1.238m were new3ds/xl that were sold in just two months(i.e almost the 50% of 3DS sales in 2014 were from new3ds/xl,in mid october-end of december!)

Guess now what will happen with new3ds/xl release in the west where ps vita is very weak and granted now New3ds/xl has a whole year in Japan to grow its marketshare and given psvita's unexpected considerable decline in the last months of 2014 in Japan(It was dramatically outpacing the first semester of 2013 in the same of 2014 but then it heavily plummeted,so i think it will further decline in 2015 and will be a lot yoy down in the first semester of 2015 as in the same semester in 2014 it was quite yoy up!