Originally Posted by
ChasG
....wondering whether I would be better off spending the money changing my Caterham or motorbike.
In financial terms, you will certainly be better off remaining earth-bound.
However, aeroplanes, and in particular aerobatic types, can deliver an order of magnitude of experience and enjoyment more than anything that is required to keep tyres connected to - or at least in the proximity of - terra firma.
Try to think back to your first driving lessons - they hardly prepared you for the Caterham or motorbike experience - but you need the be trained in the basic arts of any discipline, and the first few steps of that training can seem like wading through glue.
Stay with it - and if you start to question why you're doing it, book yourself an aerobatics session, and understand that you could be doing the same thing yourself in a year or so.