I definitely see my interest in streetwear transitioning into an interest in more formal wear. The reason why we are all interested in the clothes we are is because of construction, fit, quality, all of that stuff.
The same things apply to nicer clothes. So if you see yourself in a position in 10 years will you will need to be wearing that stuff, I would think that for most of us it will still be the top of the line type stuff. Top brands or maybe custom made suits/shirts/what have you.