While it is perhaps a big strange to start thinking of Russia as a high-income economy, it’s not so surprising when looking at concrete statistics such as vehicle consumption, Internet penetration, etc. – all of which are now at typical South European and advanced East-Central European levels (even if there’s still some way to go to converge with the likes of France or the US).
In per capita terms, this means that the average Russian is now about as rich in terms of real goods he can buy on domestic markets as a typical citizen of Portugal, Greece, Estonia, Poland, or Hungary (though with the caveat that most of the latter places have a lot less income inequality). Below is a table showing the GDP per capita, PPP (current international $) of Russia and comparable countries:
Furthermore, it’s looking as if Russia might have a real chance of overtaking Portugal next year. Just as Putin promised in 2003! (Double GDP; overtake Portugal in 10 years). But even if that fails, at least overtaking Greece is all but assured, so even if Russia misses out on Portugal it will still get to say it is no longer the poorest “proper” European country.