I agree with all the above, except for one. Spanish property sales have been diminishing since 2004 long before the recession, tourism has been falling for a few years too.
The Spanish did everything wrong on the Costas, indiscriminate building that made some areas look like the Eastern block flats. No customer service just an arrogant take it or leave it attitude. Xenaphobic treatment from Local Authority staff, silly prices. Even the large golf groups have stopped visiting, not so much for the prices but over-development around the courses, some greens having a narrow alley between two ugly blocks of apartments and the treatment of clients. The property scandals were just the final nail. Some of the reasons why we decided to leave after 15 years.