I've thought about this and wondered, for some a trans woman is exotic and very desirable but for others I think it's a total turnoff.
I guess in that way it's a "specialization" where ones perceived value is increased with one group but diminished with another.
This also leads to a question for the pretty trans girls, how much work should they have done to themselves, some choose to go without things like Blockers, SRS and FFS surgeries because they feel it would diminish their attractiveness to a particular group.
Even if I was a knockout but distinctively trans I think personally I would always strive to be more like a cis woman.