Not only is it considered one of the foremost modern hobbies for any respectable member of Necron nobility to engage in, but some AdMech are extremely insistent on partaking in it.
Trazyn is one of the best characters in 40k there’s no contest
Spooky Skeleton Robot Man who collects archaeology from across the galaxy, freezes people in time as art displays, and gets up to sitcom level feuds with other immortal robots
"When the Necrontyr shed flesh and left death for lesser creatures, we thought only of freedom from fear and making kingdoms that would never die. We did not think what else immortality would entail. We thought in terms of wars, of destruction, of conquest. But eternity also requires what you would call entertainment.” - Trazyn the Infinite