for god's sake, man, it's a life experience. Have the fun of doing the training and see where it goes from there! Life doesn't always have to have a financially viable purpose, and a £400 bacon sandwich can be a lot of fun. Stop thinking about it so much!
Words of wisdom! Dont mean to be a damper, but if you have to ask, perhaps not for you. Have benn flying for more than 40 years with no other purpose than personal accomplishment and enjoyment. Recently made the transition to helicopters that you are describing and my only regret is waiting so long. Life is short.