I don't care what anyone says but I believe that the life expectancy of your hairdryer is determined by how often you use it and how many people in addition to you are also using it.
I have had my little safeway for 15 years! Can you believe it? Neither could I.
I can honestly say it has never let me down but, since I have given up heat styling to focus more on natural hair drying and hair growth, I don't use it as often as I used to. I just use it sometimes when I want to style faster by blasting some mild hot air over my rollers which have been covered with a scarf.
Safeway hairdryers have issues, I know. Sometimes they overheat and switch off then you have to wait hours for it to cool before continuing with styling. I have seen it all before>
Anyway, its my nifty little tool that I am keeping for life!