Well, once H-D became the sales phenomenon that it did after the Evos came out, almost everybody and his "brother-san" wanted to, and did, make V-Twin cruisers, ya know.
And yep, one COULD say that ALL those bikes pretty much look alike, and are just slight "variations on the same V-Twin theme", WHICH makes the Thunderbird, and in fact ANY of the present Triumph cruiser line unique in that regard, of course.
Yep! Just like a good Single Malt Scotch, you might call me "an acquired taste" TOO.(among the many OTHER things you may care to call me, of course)