Yes, thanks gasex
I suppose you get what you pay for - the Citabria appeals more, certainly and i would be interested in getting a DA and perhaps down the line, doing tw conversions etc, so it's probably the one to go for - the fixed costs probably aren't that much different than an Aerobat and if I bought a late 70's model, could run it on an Annex II CofA as opposed to the new EASA annual. It's just that initial purchase price! The Pitts I had was a bit crippling as a sole owner and i couldn't sell shares in it ( based Scotland ) - but the citabria will probably appeal more as a group machine having the second seat and being more of an all rounder.
Like those early 150 Aerobats, though - a future classic I would imagine.
Thanks all for your input.