Who here thinks I'm crazy for it ?
Not crazy, it sounds like you have good reasons for doing so.
I wouldn't do it, but then the reasons you do so don't apply to me.
I don't want to give up the best shaves of each blade (which the first almost never is!!), nor do I want to send blades to recycling until they've given a respectable amount of service - yes, they're still more environmentally friendly than plastic carts and disposables, but they're less friendly than they could be.
Barring good reasons, I think most people should try taking a blade to 20+ at least a few times - it's both a useful learning experience and at times a revelation (in the sense that the best shaves may not be the first 2-3, and if a shaver never use a blade beyond that point they may not realise what you're missing!)