I saw the following deals between Amazon and eBay on TracFone Bundles for sub $100.
Some look like a great deal just for the price of the Airtime alone.
TracFone – eBay
TracFone LG Rebel + 1 Year of Service with 1200 MIN/1200 Text/1200MB
TracFone ZTE Zmax CHAMP + 1 Year of Service with 1350 MIN/1350 Text/1350MB
TracFone ZTE ZFIVE 4G LTE + 1 Year of Service with 1200 MIN/1200 Text/1200MB
TracFone – Amazon
TracFone Samsung Galaxy J3 Luna Pro 4G LTE Prepaid Smartphone with Amazon Exclusive Free $40 Airtime Bundle
TracFone LG Rebel 4G LTE Prepaid Smartphone with Amazon Exclusive Free $40 Airtime Bundle
TracFone LG Rebel 2 4G LTE Prepaid Smartphone with Amazon Exclusive Free $40 Airtime Bundle
Simple Mobile – Amazon
Simple Mobile LG Fiesta 4G LTE Prepaid Smartphone with Free $50 Unlimited Bundle
Simple Mobile LG Rebel 2 4G LTE Prepaid Smartphone with Free $50 Unlimited Bundle