No footwear is going to last you that long. Especially without maintenance and resoling which will roughly cost the same as the price of the shoes each go around. $200 is relatively cheap for a pair of Goodyear welt shoes. But as others have pointed, r/goodyearwelt has a lot better options than solovair. You’ll get higher quality stitching, leathers, and craftsmanship that will go further in your 10-20 year wish, but again, maintenance is key to that.