Mez is full of it, I live near enough to Ratoath and have friends and family in the area, he's just typical example of a local in whose craw it sticks that its because of "blow-in" Dubs that there's any decent services or housing available in the area.
By this I don't mean that he's a typical local, as you'll find most to be very friendly, just typical of a type of local that are thankfully in the minority. As if the picture he paints is only confined to Dubliners anyway, before Dubs even heard of Ratoath there were people like this on the streets of Ratoath every weekend night. Although they'd probably be more socially forthcoming than mez and his ilk as while you can't judge a book by its cover you can tell a man by his words.
Ratoath is a decent village with plenty of local shops, pubs, restaurants etc, it is still a decent time to buy because there are changes in infrastructure on the way that will make some of the drawbacks such as getting into/home from Dublin or the traffic mess in the village a thing of the past. Also for some reason new houses in various estates don't get hit for stamp duty for owner occupiers irrespective of size, price or ftb status.