Interesting, almost all of our service stations have LPG pumps, availability isn't an issue.
I don't understand "Fear Factor", are you suggesting people think gas tanks will explode?
Gas is safe, clean and inexpensive compared with petrol, it's only the cost to convert that can put people off. I forget the exact amounts involved but I paid about $2,000 to convert my daughters car and then got a government payment of about $1,500. The approx $500 out of pocket was recouped years ago with cheaper running.