ummm...no, helmets sold must meet certain stds (dot, snell, ece, etc) but generally price gets you more helmet shell sizes, better furniture, lighter materials though they will all meet the same standards.
More importantly find the helmet brands that fit your head correctly, check webbikeworld.com for a great guide on helmets along with great non-biased reviews. Also look at the british sharps tests
http://sharp.direct.gov.uk/
Then go and try those brands out and find the right model that fits, then maybe start looking at graphics etc.
Both Arai and Shoei are reputable japanese brands, there are a multitude of other reputable brands as well such as Shark, Ogk, Agv, Schuberth, etc.
IMO fit is most important, construction quality, brand and graphic design follow in that order.
Good Luck, ride safe