Tbh, i needs gapps tho (best if minimal), people who only have a set of apps to use may not need gapps, but even then they'll need some kind of other market or search for apks so in the end android does equals to it's app base. As for gapps, you cant get your answer from a handful of people, especially who only use a few app. There will always be people fine with and without something, but majority on android need gapps (afaik mostly just playstore/playservices/gmail/youtube/playgames) so much that its a deal breaker if they cant get them and will just choose another device with gapps on it, or rather the deal breaker is playstore the others are installable from playstore. Thats one of the reasons almost all vendors these days ship android with playstore.