I’m a cocktail guy … wine is nice, but in the end, my meals are always with a scotch of some sort.75 for a bottle is going to be Grey Goose or Belvedere. Everything else is cheaper. Most people pay like 20 or 25 bucks for a bottle of Absolut. Places like Cabaña or Osaka or Alvear are top of the line places and that 100 bucks will still get main, appetizer, water, and bottle of wine for 2 people. Same meal easily 300 in a similar place in US or Europe. You only have to be careful in the wine menu. Those places have a giant selection of wines and many of those are very high priced (300 or more for certain bottles).
You can go to a "normal high end restaurant" and get a complete meal for 2 for 30 bucks. Cheaper during lunch with all the specials. But unfortunately outside of "normal high end restaurants" and up, I find the food in Argentina as not so great. I have no complaints because you really only spend around 10 bucks for dinner at a really good restaurant. Of course more for the best ones.
How about tipping culture ?