Ehh, you seem to be back up my statement:
Of course at normal rates Uber is cheaper than a taxi, that isn't the pint of contention. the issue is with Uber you can be at 1.7X or 2.0X the base rate, quite often at times when you most want a taxi quite obviously, so when it is a busy period there is a fair chance you will pay more for an Uber than a taxi.
ah fair enough, it was more the 'much more expensive' statement - there could be a UK/US difference wrt surge - surge doesn't tend to last long when it happens in central London it isn't standard even at popular times IME and at 1.7 would probably still be cheaper here for some journeys. I guess at 2* then you'd be getting more expensive but only marginally. I guess Black Cabs are rather expensive to start with though and the drivers generally well rewarded (well at least until uber turned up).

