All that matters is the Pursuit of Happyness...
Seriously though, just use whatever is comfortable to you; however, this is a keyboard enthusiast forum so it matters to many of us.
I just recently switched from dome switch to mechanical keyboard and I know I could never go back. I tried using the keys on my Samsung Series 5 and it just feels incomplete to me.
I still haven't reached my typing max like I did with the rubber dome (mostly cause I took so many typing drills on it and got so used to typing fast on it that I still getting used to not pressing with so much pressure even though I already type fairly light).
It's more about comfort, use, and whatever makes you happy.
One very superficial reason I all of it matters to me is customization (especially in looks). I like to have my things express me, and since I really got into keyboards, I really want my board to stand out and people go, "That's Tim being all unique and hipster about his keyboard being tiny and blank."
Just do what pleases you and optimizes what you have to do. ManyKorean Starcraft 2 players use the Qsenn (which I find completely pointless because it really is just a regular rubber dome with just a slightly better build quality).