Lucky you- I've been flying for 20 years, and still haven't even got a ride in a Super Cub, let alone on floats!! If you decide to get your pilot's certificate, I recommend you start with gliders- less time and money usually (unless you're a total spazz), and having every flight an engine-out situation forces you to develop a strong foundation of basic skills. It's also a lot of fun! Should you move on to powered aircraft, the glider rating, hours, etc. can be applied towards that. I always say "sure, you CAN learn good stick'n'rudder skills in a powered airplane, but in a glider. you HAVE to!" When I got my PP-Glider after years of flying power, I regretted not starting with them. Whichever path you choose, I also advise you to join a flying club as a student- in most cases, that is also a cheaper way to go, and once you have your "ticket" you will be able to fly the club's aircraft at rates that are usually cheaper. Some clubs also offer free instruction. Anyway, good to see and your CX still clunking along... happy trails!!