[jgon]

The standard TI graphing calculator offered to schools is the TI-84 Plus CE, which is generally 140USD and up. This calculator is currently offered for 89USD so you're already immediately incorrect on the pricing. The battery in this one is roughly 50% larger but that doesn't translate to better battery life necessarily. They both allow for programming with Python but this calculator would have to try incredibly hard to be worse at Python that the TI calculator, so I'd probably say it has an edge there too.

[t-3]

I've always seen TI-84s being advertised for $90-$100 new and often being given away for free as hand-me-downs. Amazon also shows me many models from 90-110.

[glimshe]

I got my kid's on eBay for $50 during summer break... Looked almost brand new