I must say that as I 'get on' I find it easier and easier to swallow the cost of a 'limo' Vs a taxi from curb side - especially when its the first time at a particular airport / country.
I've had so many poor experiences - including just plain hassles of getting the driver to understand where I want to go (with written instructions, in their language
) - that I now price my time and stress appropriately and can easily justify the cost, especially in terms of an overall international trip cost.
Happiness is seeing the uniformed man in Arrivals (or before) with your name on a sign. Check ID and credentials, give him the case to tow and follow him past the taxi rabble into the car +/- cold towel.
Commercial 'limos' much preferred over hotel ones; the latter can be a distinct rip-off.