It would be cheaper if meat wasn't ridiculously subsidised, which needs to change. In restaurants it costs about the same.
Regarding health it of course depends on product and what metric of healthiness we are looking at. With burger patties I consider them to be at least the same. With sausages I would consider the plant version healthier.
Taste is subjective and also a matter of trying out things and getting used to them. I love meat, but I also like the taste of many plant based alternatives as well and sometimes I even crave them over meat.
Ethical/ecological angle is clear.
(I live in EU and consume more actual meat than plant based alternatives.)
It works for some people, e.g. me.