[CyberDildonics]

Why would replaying data for testing be "Delightfully hardcore indeed!". That's how people program in general, they run the same data through their program.

Servers are a quickly depreciating asset, why invest in them?

I don't think they are a quickly depreciating asset compared to the price of renting, but you would want total control over them in this scenario anyway.

[nine_k]

I thought that the hardcore part is taking the data from the switch to account for the network latency.

[munificent]

> Why would replaying data for testing be "Delightfully hardcore indeed!".

Replaying data isn't hardcore. Buying a dedicated server and running it through a dedicated switch just to gather precise timing info is.