Simply put, with SSDs you are trading the convenience of having faster boot times for essentially everything: HDDs have (a lot) more space, lower prices, longer lifespans.
Simply put, with electric cars you are trading the convenience of charging at home for essentially everything: Gas has higher range, maintenance is easier to find, filling your tank takes 2 minutes instead of hours and that tank's capacity doesn't diminish over time.
Simply put, with screens you are trading the convenience of not having to deal with paper for essentially everything: Printers have better resolution, paper is easier on your eyes, it's more portable.
I guess people just like convenience.