I have swam with sharks on numerous occasions, and always look forward to doing it again. I realize that surfers are especially at risk, so would I surf without personal protection (like a Shark Shield)? No. That's silly. Respect and fear are two different things. The sharks aren't out to get you. They may be curious, but because they're not mindless killing machines most peoples encounters with sharks end with a bump or a "omg! look! a shark!" moment. If sharks truly wanted to eat people then almost no coastal waters would be safe. As it is, millions of people go the beach to surf, swim, snorkel, etc. without incident every year. We can't make the world a perfectly safe place, and there are much more dangerous animals out there than sharks (for example, mosquitos, pigs, bees, ants, dogs, crocodiles, and other people). A waste of money is a waste of money, no matter how many warm fuzzies it gives people.