Forum TI-Planet.org

... with more memory and program steps than the original.
130 Euro + delivery and it will be available in a couple of months

https://www.hpmuseum.org/forum/thread-19886.html

Pre order here:
https://www.thecalculatorstore.com/epage....sf/en_US/
https://www.eduwinkel.nl/hp-15c-collecto...lator.html

Yeah a simple way for them to get some good money from the old timers, and hopefully use it on more modern (and dare I say, useful) things like HP Prime development