I just finally gave away a 17" Trinitron SGI monitor when cleaning my office.

That thing was a tank! I bought it at a CG house bankruptcy sale in the 90s for $2k, which was less than half the going price at the time.

But you're right, it weighed a ton. It did need periodic degaussing. And when a communication company half a mile away put in some satellite uplinks, I could see when there was heavy communication traffic by a slight color shift on one side.