Unless you live in ideal conditions, it's a real pain trying to keep the temperatures and humidity constant in a glass tank.

It can be done, though. A lot of people have success with covering up 2/3rds of the lid with Saran wrap, a towel, or using plexi-glass.

For me, a tank was just a pain. I ordered my pvcx enclosure and by golly is it ever amazing. Holds temps and humidity amazingly!

Also, I'd much rather move my PVC enclosure than a tank it's actually not that heavy