I use a shoei multitech for the freeway and cold weather.Its good to be able to flip it up when stopped at lights or in traffic.I also dont have to take it off when paying for fuel.And when cruising locally i just use a half helmet,not much protection but good in hot weather.I think having a couple of choices is the way to go.....
I just read this morning that the Federal Government is pushing for mandatory helmet laws in every state in the country because the fatality rate had doubled in the last decade due to head injuries. Granted, the number of bikes on the road has increased incredibly but keep in mind that this is the "Federal Government" and in this country they really don't have a very good track record.
Nolan N90 modular helmet. Retractable internal sunvisor is a great feature, as is being able to raise the chinbar and get the helmet on/off while wearing my glasses. I tried a skid lid in the past for about 3 miles and decided that a full face helmet was the only way to go. Granted I will ride with the modular open when I am stuck in traffic but after that I lower the blast shield.
Previous to this I wore a Scorpion EXO700 for a few years and thought it was a great helmet. I bought the Nolan this year to comply with the ECE 22.05 safety standard required where I am in Europe and if this modular is a good example of what a modular helmet shoud be, I will continue to buy this style of helmet.
I'm somewhat of a helmet snob. I only replace them every seven to ten years so I figure i can afford to spend big when I do. I just bought a new Arai Corsair-V. Once upon a time I think you HAD TO buy Shoe or Arai to get a decent lid. But anymore, I think that some of the more affordable choices are just as good. Buy what fits your head and make sure you have good ventilation. Ventilation makes all the difference to me.