Once in a blue moon, someone might be able to get a good deal on multi-time in an old aztec or seneca and mitigate the requirements through...but there certainly is a lot of variety in training out there for nearly the same price (i.e. aerobatics, seaplane add-on, glider) most people will have the rest of their careers to fly straight and level.

One really big waste of money (to me at least) is those who train in glass... of course that's been covered in other threads.... and (to rock the boat a bit) why would anyone consider DA42 time the least bit more valuable than a complex single?

but..... chacun à son goût