Found a great deal on this site. TI83-plus calculators for 50 bucks...over 100 everywhere else I see them. Pretty sure they're not the newest ones, but can't really beat the price...

https://www.valuevalet.ca/texas-inst...r--627190.html

Anyone with kids going into high school, I'm pretty sure all high school math classes need this kind of calculator. This site does free shipping for all of Canada at prices over 50 bucks, too.