Some are not bad at all, some are ok, some are horrendous.
I like the Cowboys, but as a novelty only, as with the others. Rather see the current versions on the field on game day.
But from a marketing view, I would think some fans would buy them just to have them on their shelf for show, as something different.
I like most of 'em, including the new concept of ours as well. It takes at least a decent measure of flexibility to accept change from what we've all become accustomed to for so many years but everything changes with time. Once most of these are introduced and gotten used to, it should likely afford fans a welcome new appearance.
Gotta admit, though, the one designed for the Dolphins sure appears to bear an overdose of orange.