I'm not a boomer and watched the 60s show as a kid, but to think there are enough of us later generations that are fans of the Batman 60s show AND love it enough to buy $$$ collectibles from it is a completely different story.
Sure, some of you millenials here will be all "rah rah, I want more 60s Batman collectibles!" but I'm skeptical how many of you love it so much that you'd be willing to put your money where your mouth is.
The older guys here are more inclined to get all this stuff, it's their Batman. Like I said though, after each year passes the interest in it will shrink. The main demographic that this appeals to is rapidly shriveling up every year. 5 years from now? 10 years from now? It only gets worse. Sure, there will be your random sj2106 or DiFabio that will spring for something like a $700 Batmobile based on a 51 year old tv show, but other people our age? Fat chance.