I just try my best to avoid large supermarkets chains - Especially now that my tolerance for spending half an hour in a "caja rapida" queue to pay a ludicrous amount of money for below-par produce is now at its lowest level ever.
What irritates me even more are the terrible waits that you have to endure in some cafes (usually the nicer ones, I've noticed). I'm usually a very law-abiding citizen but a few weeks ago, I marched straight out of a cafe along Corrientes after waiting 40 minutes for one of the 5 waitresses (in a cafe where there were two other occupied tables!) to bring me the bill I had asked for...twice (after waiting almost 20 minutes to get served in the first place). I felt awful for a good couple of hours afterwards and even considered returning to settle my bill - but fk it! Why on earth should I spend my hard-earned cash on such a miserable experience?
The other day, I experienced a similar wait in Le Ble (not to mention the epic Cara de culo of the waitress). If I hadn't been in such an overly tolerant mood (probably thanks to their chocolate tarts), I would've done the same as before...
Seriously, if people (expats and otherwise) keep tolerating terrible service and waits instead of taking their custom elsewhere, it's never going to change.
I, for one, make a real effort not to go back to anywhere where the waits have been excessive or service, shoddy. Problem is, it's now reached the point where I'm reluctant to even try somewhere new and tend to keep going back to the same old shops, cafes, restaurants...Quite sad, really!