I strongly disagree that eating out is the same cost as in the US/North America. It is considerably less expensive, especially when you factor in that taxes are not additional to the cost, tipping is 10% and a glass of house wine is usually cheaper than bottled water. I do not ever recall having a steak dinner with wine and a side for the equivalent of U$12 at dinner or U$7.50-10.00 at lunch. Not even in Vancouver where there are an extremely high number of restaurants per capita and dining costs are low compared to other centres.
I have been here for 7 months and noticed only modest increases in some costs since arrival, and dining costs have not budged with the exception of prices for meat items. The most extreme example of in increase that I have seen was a 5 peso increase for bife de lomo in one of my favourite restaurants. I have a beautifully-furnished 1 bedroom apartment in Palermo Soho 5 blocks from Alto Palermo mall for U$800/month, all-in except cleaning lady. And the cleaning lady charges only 15 pesos/hour.
The cost for taxis has skyrocketed in the last few months, and there have been definite increases over the past several years in the general cost of living caused by inflation, year by year. But to say that inflation is "skyrocketing" strikes me as fear-mongering. The moves have been incremental, and I don't believe that anyone fortunate enough to have an exit strategy should worry that expenses are going to "skyrocket" within the next 3 to 6 months.
I think you could live here quite comfortably if you manage your core accommodation expense and plant yourself in a neighbourhood where you won't need to take taxis everywhere. The city is beautiful, the people a delight, and I say... go for it! It sounds like a good match for you.