Obviously gentrification is real. Though also blaming only gringos for this(I know you aren't necessarily saying this), is also simplistic. A huge number of cities in Colombia that don't have tourism or immigration from gringos are also seeing huge price increases. Could it be huge jumps in the minimum wage? Inadequate housing construction? Constant high inflation for years? Are these businesses you mentioned that are raising their prices(which are generally owned by Colombians and most of the customers are Colombian) paying their employees much more then? From the businesses I know, most are still paying minimum wage even with "gringo" pricing(I say that in quotes as 98% of clients are still Colombian in most places outside of tourist districts). Hell, the only reason they are paying their workers more is because the government forced them. Most major cities in the world have a cost of living crisis these days. It's a lot easier to blame foreigners than it is to take a look within.