I found the complete edition on Amazon for less than 20 (there are other more expensive copies on Amazon as well). Looks like it's going through a third party but it's "Fulfilled by Amazon" whatever that means. Maybe research the 3rd party people? Looks like they're actually selling a disk-based copy.

https://www.amazon.com/Sid-Meiers-Civilization-V-Complete-PC/dp/B00HWMP0TU