I used buckets 30 some years ago when I first got into this addiction, when I got back into it this spring I upgraded most of my equipment and that included switching to plastic conicals. At this point you couldn't force me to go back to buckets. I would prefer to have stainless conicals but like you I haven't found any gold turds in my yard lately, and haven't yet seen any significant downside to plastic ones, except that the 1st one does have sealing problems. I think a new gasket will cure that, and even at it's worst it seals many times better than my best bucket ever did.
Stevie's point is very valid if you need to fit your fermenter into a fridge, the Fast Ferment conicals are 32 1/2" high from the base of the stand to the top of the lid, not including ferm loc or blowoff tube. I had to put a 90 degree barbed close nipple in the loc-hole to get it to just barely squeeze into my keg old fridge.
One of the many advantages to using conicals is the elimination of racking from your fermenter, simply dump your trub ball when primary fermentation is done [or whenever you get around to it] and then bottle or keg right from the fermenter. I still bottle and it is a cake walk from a conical compared to goofing around with siphoning from a carboy or a bucket.
These other guys all have much more experience and knowledge than me, but you might at least give a thought to conicals.