If you just noticed that your child has to get a TI-83 or TI-84 calculator as part of their school supplies – you might also have just seen the sticker price. Ugh. At around $100, this is definitely time to go deal hunting! Here are the best deals on the Texas Instruments TI-83 or TI-84 Calculator:
Craigslist: I found TI-83′s, 84′s and 85′s for as low as $35 nearby – this is an awesome option!
Ebay: I found TI-83′s from $35 – $60 that were certified in good condition. Also a great option!
Ask around at school or your own adult friends to see if they still have theirs and would be willing to give it up. You may wind up with a free one!