Your probably right Anita. They are indeed selling both worlds which is probably why they charge more.
As for the other poster its not gay people who use the but more straight and bi. Iv actualy read somewhere that straight people are attracted to the femine features of the shemale and sometimes dont cop on to the the fact that there she males until they see the appendege. In this industry im not so sure because they are all ready labeled but you could still get the odd curious punter