I love the pokewalker!! One of my favorite facets to pokemon is all the insane hardware and peripherals you're either provided and/or expected to use to engage with it's world and your little guys! The depth it brings to already really meaty games like HGSS is honestly mindblowing, especially since when coupled with all the unlockable courses you can get almost every Hoenn pokemon and most Sinnoh mons using just HGSS and the pokewalker. A lot of rare pokemon from all four regions at the time are stuffed into the later courses and it makes the whole process really rewarding. It's also the only way to get Dive Balls in HGSS without trading LOL, but again the rarity makes it so much fun!!
Last year I decided to start the challenge of getting one of every pokemon from every course, so I started taking my pokewalker to work everyday where I do a lot of walking, usually after a shift I would have walked around 5000+ steps. Which most of the time gave me a lot of watts to stockpile or gamble away for rare items. I went crazy with it, every other week or so i'd be like Oh boy what course am I going to unlock this week!! And then I'd get to explore it throughout the week, trying to get every pokemon. My Heartgold boxes are stuffed almost to the maximum from extras that I plan to trade to Ranch to watch them run and play with toys.
The best part is that i'm not even finished! I kept the routine of adding a pokemon in before work and then periodically checking throughout the day to make sure I got pokemon from each certain step threshold and then finally sending back everything when I got home. I got all the way up to the Icy Mountain Road course which requires 30,000 watts stockpiled! Each time you send new pokemon back from the pokewalker it's caught date is when its sent back so some day when I finish catching em all; I would love to look back and see how long it took me and when I was the most active with my walker!
Since I stopped using my walker every day around January, I found a poor Mareep from the Icy Mountain that stumbled onto my path that was trapped in my pokewalker for pretty much all of this year. I sent her back only a few days ago and ever since ive just been taking her everywhere in game while I harvest Apricorns or do daily events because I feel bad!
Anyways enough rambling, I really like the pokewalker and what it brings to daily life. Helps me remember each day as I get older!