The biggest bugbear people currently have with taxis is not knowing how much it is going to cost. To be fair, those with money who want to get from A to B, will pay the price to get where they want and know the price beforehand.
It's nothing new that hackney's and limos can charge whatever they want. If there is a set price and the customer complains, they've already paid.
You might have warned me about using a limo, and I've made that choice. The cost of putting a taxi on the road far outweighs the cost of putting a limo on the road. I'm not bound by year/door stickers/meter sealing/scumbags getting in my car. I also own my own plate. I am also looking for another job(9 to 5), as I can't work the hours I do taxiing anymore, and don't want to be driving a taxi for another 35 years.