Tactile Path

Just how many visually impaired people do use the tactile guide path?  According to my last visit to "Dialogue in the dark", the answer is "Not that many".

There is a conspiracy theory behind: the tactile manufacturers provide funding to the visually impaired groups, and these groups in return give pressure to the Government to have the tactile guide path everywhere... heard the latest intention is to have them all over the bridges and subways... guess the next next step is to extend it to all the pavements?!?!?!

With the advancement in technology, it's probably cheaper to scrap all the tactile paths and use the money to buy an electronic guidance device to every one of the visually impaired person.  BUT, I can't see it ever happening.