I’ve never kept track but I know I have spent far more on stuff than I have on training. That said, a lot of training isn’t formal. Having a veggie garden for example is training as far as I am concerned and I have spent a lot on gardening. A formal training that I did do that few would ever think of is I took a 6 week course (all day each Saturday) on hearth cooking. We were taught 1700’s methods using an original 1700’s hearth in a museum house. At the end of each class we made a meal of what we cooked that day. It was incredibly empowering and come a grid-down scenario will prove very useful.