I have the titan, Normally get just over the warranty period out of them

I have thought about upgrading to a makita or similar, but the same size, mainly because of the vibration and surely there'd be some performance upgrade for the price!!
But for my use it just seems a bit of a waste of money as I'm always using it in the mud and crap, down fence post holes is the main use. Plus I don't mind leaving the titan on jobs, under a barrow or in the customers unlocked shed etc.
For slab breaking I'd go and borrow/hire/buy something better, but I've only needed to a handful of times over the years.