Texas Instruments TI-83 Graphing Calculator, $69.97

Walmart is having a Cyber Monday Back to School sale. They have the Texas Instruments TI-83 Plus Graphing Calculator for only $69.97 (a $129.99 Value). This would work great for upper level math classes and I think I still have mine from back in the day. Some features of the calculator include:

lash calculator software applications
Upgradeable operating system
Pre-loaded with periodic table, organizer, catalog help, science tools, start-up, probability simulations, CBL/CBR, puzzle pack and study cards
Defines, saves and graphs 10 rectangular functions, 6 parametric equations, polar equations and 3 recursively defined sequence
Advanced statistics include hypothesis testing, confidence intervals and probability distributions
Finance features include time value of money, cash flows and amortization
Equation solver editor solves for different variables interactively
Handles real and complex numbers, lists, matrices and strings
Supports Z80 assembly language programming
Advanced graphing features including multiple graph styles
Input/Output port with unit-to-unit cable included
Computer connectivity with TI-Graphlink software (not included)