Also, Stalin organized his underlings and allies in a monolithic fashion, inside the party; punishments were mostly distributed with demotions or convictions, as internal to the system. Putin keeps his oligarchs at arm's length, in charge of companies and institutions that are nominally independent, occasionally even abroad; punishments are inflicted by "fall from balcony" and indirect ostracism, again closer to the Nazi model than the Soviet one.
Not because of Spain, which is a great place where I hope to live again one day, but because the answer to a question "how can I live a comfortable life and save money" is "move 1000km away from your family to a place where you don't know anyone, and don't even speak the language".
It shows that something's really, really wrong with the system if people making significantly above average salary struggle to have a sustainable (in financial sense) and comfortable life in their own country.
If you think it's bad renting a house in Munich on a German salary, imagine renting a house in Lisbon (similar or higher prices) on a Portuguese salary.
In a way, getting rid of all rent-seeking is probably the single most important economic measure that a "free-market" country can take.
This may well have an expiration date on May 28. Voting intention polls currently predict a shift to a right-wing majority (and this has been so for long), and the right in Spain is not moderate as in e.g. Germany. Although Pedro Sánchez has proven to be a tough nut to crack with a tendency to resurrect when everyone thinks him dead, so let's see what happens.