Flights are dirt cheap. Accommodation and food is unusually expensive though, we found - even the tenting/campervaning is nowadays quite pricey.

Language was a non-issue for us. English proficiency was high. For those who don't speak English, if you're friendly enough, you can point to what you need, plus there's so many electronic aids these days if push comes to shove, it's not an issue. Perhaps more importantly, cultural norms will be familiar to Westerners, which makes it easier.