Agreed. LAN parties were amazing. I have such fond memories of gathering with 3 to 5 buddies in a basement for an entire weekend. The games were fun but more often than not they were just a background activity for an epic hangout.
My girlfriend also regulary have LAN-parties playing Stardew Valley with her friends all together in a room like in the good old times.
All of us are 20-30 years old. Some take their laptop with them, some their tower + keyboard and mouse. The only difference is that we can play over Wifi (still works better over LAN) and have fast Internet for all these annoying updates.
LAN-parties aren't a relic of the past. They are still totally awesome and no online-game can compete with good friends playing computer games all night. ;)