I'm not criticizing his plan allcraz, I thought the attitude was rather "know it all-ish" - well, it came across somewhat like that to me (and still does). I've been traveling heavily internationally since 1975 as a teenager, live part time in Paris, am seriously thinking about buying an apartment in BA, and have been to +/- 80 countries and there's one thing I do know for sure - I still have tons of sh*t to learn about traveling. A very complicated, ever changing subject. Whatever the case, enjoy the 86 travellingbum, should be fun.......
BTW, I wouldn't say "several criticized his plan", I just think they offered him a better option. The rule of thumb on transport from the airport to the city center (or vice-versa) is , if solo, a bus is ALWAYS cheaper, if there's 2 of you, since a taxi charges by the ride regardless of the number of passengers and since a bus charges by the person it starts getting closer to equal. If there's 3 passengers a taxi and a bus are usually more or less equal and if there's 4 passengers the taxi is always cheaper than adding up the price of 4 airport transport bus tickets. Just a FYI rule of thumb thing from a Dazed and Confused Dudester