We always take chances riding. If someone feels it is necessary to buy all the gear possible then more power to them. I may be lucky, but out of the three accidents I have been in, over 36 years, boots really didn't contribute to protection. It was always the helmet and jackets. I always wear a jacket, helmet and gloves. The rest are blue jeans and either leather boots or my hiking boots. I do not feel under protected and beyond that I have good insurance.
Tim, there are guys who have wrecked without wearing helmets and never hit their heads. There will always be examples of where a certain part of the body had no impact during a crash. Unfortunately, your logic is flawed. What you should look at is if you foot gets caught between the bike and the road, or pipe and road, or bike and car, will a quality boot save you from injury? Same with quality riding pants. I wouldn't say you were lucky. You had three accidents during your riding career. I have ridden over 100,000 miles in the last four years alone and over my 32 years of riding have only had one street bike accident. Hit from the side by a jeep Cherokee when I was 28. Caught my foot at the fuel tank while I was trying to bail off the bike. Helmet never got a scratch. Heavy leather boots kept the damage to soft tissue damage that kept me off my foot for 3 weeks.