Hi captplaystation.
I was comparing the cost of living in Riga to my current place of residence, which is probably one of the more expensive places to live in Europe. In this respect Riga would be a welcome change. You can rent an apartment in the old part of town, which is renovated and around 60m2, for 550-600 euro's every month. Where I am you can add a thousand to that figure.
Admittedly, the rest of the living expenses I can't really compare as I haven't ever been in riga, but if I was an experienced 737 driver I would ask for more money in the interview.