I reckon that I have spent about £30000. I am 40 and now have the (f)ATPL, CPL/IR & FI(A). 8 of my friends have done similar. Eight are now flying commercial airlines. One did it with inheritance money - he did the full integrated course.
How fluid is your income? Have you even tried flying yet? Married? Kids? We all had good incomes or working wives at the time.
Most importantly - are you fit to Class 1 medical standards?
Regrets? No. Fears? Yes. For the future. Big step.
All the best.
covec