"Moving your #Linux workloads from a x86 server to this amazingly inexpensive #Mainframe can save 52% TCO over five years, IBM claims ... LinuxONE 4 Express starts at $135,000"

https://www.zdnet.com/home-and-office/smart-office/linuxone-4-express-how-ibms-budget-mainframe-could-be-right-for-you/