Considering most of those phones all broke and cracked on the very first drop, I'd say not really.
I have dropped my 15th unit, my current iPhone 4 one time so far on the sidewalk of SF -- it landed on its corner and has a dent and a scratch. I feel lucky that I have only dropped it once in 8 months.
The things are fragile. There is no denying that. With the iPhone 4 introduced with now 100% MORE glass to break! (the rear panel) I think its actually irresponsible of apple to not put a lanyard hole on the damn thing.
With respect, I think a greater part of the problem is mistreating your stuff. One, two, even three broken phones I can see. Fifteen indicates a problem with the user.
My iPhone 4 fell out of a pocket as I was getting out of my car and cracked the back glass, which was a cool $70 out of my pocket. I got a replacement back and it's fine again, but I made goddam sure not to drop it again.
I dropped my iPhone 4 the day after I got it, at 25 mph from a bicycle, on an industrial concrete road, and the phone survived without a scratch. I got the Apple bumper the next day.
I have two kids, 10 and 7. Can't tell you how many times that phone has been dropped since. A lot. I took it mountain biking one too many times, took one too many jumps, shattered the front glass. Apple immediately replaced it for free despite being a month out of warranty, but it was still a 3 hour ordeal since the store I went to didn't have my model in stock, so I had to go to another store. Considering my take home is around $75 an hour, Unless you're rich and have a lot of time to deal with the hassle (a rare combination), I think your vanity is getting in the way of good sense, thus I question your judgement.