Magnetic drain plugs are kind of like afterburners in an FA-18 fighter...you really don't need them......but nice to know they are there....no more weight, don't require more HP, and they may just pick up something along the way to help keep those rod and main bearings nice and clean ........
I used to work in a machine shop and one of my jobs was to tear apart engines for rebuilding...you wouldn't believe what is inside some of these oil pans and how some of these motors look that people really don't take real good care of.
I know the motorcyclist is finiky about his bike for the most part...so good routine maintenance oil and filter probably won't have any affect on the average biker.....but why have a louder horn when a stock one will do...why use PR-3's instead of stock.....cause it just may be a little bitty help along the way.......
Everyone has opinions ...this is why this is such a great site to share ideas.....
Pay your money and make your choices...
Ninja