The apts and dachas you saw on TV are probably not typical of the average income Russian family. I checked into new apt buildings at the end of various metro lines (maybe a 10-20 min marshutka ride to the station) and they are starting at $50000 for a one room flat (1 small living/sleeping room, 1 toilet, 1 bath, kitchen and entry hall). The apts in the city center are renting for $750-$4000 a month depending on age, remont and facilities (parking, security etc are expensive). You can rent apts for much more than $4000 if you want a building with a health spa or other luxury services.
As for dachas, anything that looks like a big house in America is for the rich. Currently they pay little or no taxes on these but the government is talking about starting to tax them which will be very expensive. Also there has been a story on the Moscow news about the rich building dachas in ecologically sensitve or protected areas. It seems all they had to do was give government agencies and inspectors a few "gifts" and their private communities on the lake shore were OK'd.