No, it's not. The Czech Republic is 22% cheaper than Germany and Poland is 40% cheaper . File:Figure 1. Price level index for household final consumption expenditure (HFCE), 2011, EU27=100.png - Statistics Explained
Statistics? I was in all three countries last year.. The supermarkets were about the same price.. electronic goods were actually more expensive in Czech than Germany.
What are salaries and social welfare rates by comparison? I bet a lot more than 22% higher in Germany