Don't get mixed up with a quality helmet and a fancy paint job. A helmet with a Rossi paint job will cost a load more than the same helmet in plain white. Aerodynamics in my opinion are more important than saving a few ounces. The noise will be reduced making the rider more aware of surroundings and maybe not so deaf later in life. Wind drag at 70mph will give you more of a pain in the neck than an extra 4 oz. Of course 4oz is important to a motogp rider where a 0.1 second difference on lap times can mean the difference between winning a £1million pound sponsor for coming first and being relegated to the lower echelons. So if you have the need to sport a race winners helmet you'll pay for that. Just like an England or Man U strip bares no relation to cost of production. Granted a lot of research and development goes into materials and shape and some helmets have lots of little extras like vents, flip fronts etc. but it's still a production line, mass produced item, not a hand built, custom fit , one off. Essentially a helmet is a plastic bucket full of expanded foam with a cloth liner. All we need is a good shell and a good fit. Remember also that more than 50% of the price you pay is retailer mark up on a designer brand. They easy knock 50% off in the sales and stay in business. Watch how much the price dips when your race replica starts losing. If you barter with the shop and ask for 20% off a £250 helmet, you'll be doing us all a favour.