It all depends on where the European hair is sourced really as good quality Remi European hair can last considerably longer before it starts to show any oxidation etc..
Again Hersute quite rightly points out that that a lot of it is down to the hair texture.
I would tend to think that it is a far better option for full wigs with good hair length(popular for women) rather than toupees for guys but everyone has their own preference.
On a side note beware of vendors advertising European hair when it is just Asian hair that has been over processed to mimick the European texture.