It would be great if speedos would be real come-back! I have been hoping for this for many years. I think the aversion against speedos is rather an American affair. In Europe they are still common as male swimwear, although it is pity that boys and young men tend more to shorts.
Normally I only swear speedos, although I prefer to go to nudist beaches and I am also glad that my gym - right in the center of Vienna has a nude sundeck. This is my favourite speedo. I am not an American but I think it just looks cool!