I have the curse of usually choosing a rather obscure character too. Sometimes from mangas. Mostly from video games (and more to come, yayyy). Of course that doesn't mean I don't cosplay from popular fandoms such as Vocaloid. I gotta say I like cosplaying obscure characters more because you may never know someone might recongize you and you would have at least tracked down a fan. And if not, .... well who cares?
I cosplay for myself and for the characters I love.
I get excited just making obscure characters and wearing them.
That's more than enough for me really, haha!