Compare and contrast.
- Cost about $100.
- Still work great.
- Made in 1980s.
- Far surpassed for their original usage by new technology (desktop computers, bikes with suspension) but because of essential features (the best buttons ever put on a calculator, a timeless steel frame) continue to serve useful purposes.
- Able to be morphed into other purposes easily by me somewhat aided by a book (HP-15C Owner's Handbook (the best manual ever written for an electronic device), the Park Tool Big Blue Book of Bicycle Repair 2nd Edition).
- Some people look at me funny when I use them.
- Some people nod knowingly when I use them.
- RPN and a Biopace chainring.
- SOLVE key and LX M-454 cantis.
- Landscape orientation and M453 SIS thumbshifters.
- A giant enter key right in the middle and four finger brake levers (easy to mash either when panicked without fear of harm).
- Not high powered, but run for an incredible length of time on the power available.
Edge to the Suncrest: once carrying me up and down South Mountain with a bunch of road bikers, hauling me back and forth to work regularly, gears, wheels, pedals.