Are you sure? Everyone I know on here who owns one spends thousands keeping it right.
Well that all depends and boils down to four factors:
Essential servicing.... Bear in mind that a 2.5V6 Busso is externally similar and uses virtually identical parts, capacities of fluids and therefore the GTA should cost no more to run... The past year mine has cost me roughly £120 in service items. The year before that £185.
Next year though it will cost me roughly £900 extra for tyres, pads and cam belt change etc. Already factored into the running costs.
So £1,300 for three years use. Hardly extortionate in comparison
There is a difference between changing an item that fails to changing an item that is uprated for the sake of "improvement" and can then become very costly indeed. Keep them standard, keep them simple, you keep them on the road a lot cheaper.
DIY if qualified and proficient can literally save thousands of pounds every year, Labour costs is the main cost killer on any V6 Alfa. The same costs are for any Busso, not just a GTA
Knowledge when purchasing:
Homework, homework, homework... Knowing what to look for and buying a well sorted example initially that has had all the main, expensive items changed already saves literally thousands in one go. Or, you end up purchasing somebody's nightmare with faults and end up fixing them at a cost to you... Then wonder why owning a GTA is so damn expensive, when it really shouldn't be... In other words, "A failure to prepare, is to prepare to fail"
It's a lot less complicated than some make it out to be mate