In today’s technology-centered world first impressions are made in milliseconds and your website is the first impression of your business. You must capture the user’s attention instantly and Flash is the best way to do that. Flash makes everthing from shopping on the Internet to reading or searching for information more engaging and interactive.
From a user's perspective, Flash makes surfing the web much more fun and entertaining. You don't just passively look at a website the way you would with an HTML website, but rather engage with that Flash website so browsing is more like an adventure.