$999.99 for “I Am Rich” app in 2008 was expensive? #iOS 9to5mac.com/2021/02/19/app…

$999.99 for “I Am Rich” app in 2008 was expensive? #iOS
9to5mac.com/2021/02/19/app…

Enterprise Blockchain with Hyperledger: An Introduction to Sawtooth, Fabric, Cello, Composer, and Hyperledger Explorer
5.0 out of 5 stars(2)
Available for Amazon Prime $14.97 (as of 2023/01/28 09:53 GMT +08:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Blockchain with Hyperledger Fabric: Build decentralized applications using Hyperledger Fabric 2, 2nd Edition
4.7 out of 5 stars(18)
Available for Amazon Prime $49.99 (as of 2023/01/28 09:53 GMT +08:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Programming Hyperledger Fabric: Creating Enterprise Blockchain Applications
4.5 out of 5 stars(8)
Available for Amazon Prime $41.99 (as of 2023/01/28 09:53 GMT +08:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Hands-On Blockchain with Hyperledger: Building decentralized applications with Hyperledger Fabric and Composer
3.9 out of 5 stars(35)
Available for Amazon Prime $51.94 (as of 2023/01/28 09:53 GMT +08:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Hands-On Smart Contract Development with Hyperledger Fabric V2: Building Enterprise Blockchain Applications
4.0 out of 5 stars(8)
Available for Amazon Prime 45% Off $69.99 $38.49 (as of 2023/01/28 09:53 GMT +08:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)