I had two snakes in 20 long tanks and spent alot of money on them! My female was always so stressed and always snappy. I got a third snake so I have no room for 3 tanks so I build a rack with 41 quart tubs and she seems alot happier and does eat very well and is no longer snappy and it's only been a few days!

20 long is 30x12
41 quart is 30x18

So they actually got larger enclosures now and I no longer have to mist them! I believed like you until I tried a rack and they are much easier to maintain and keep temps/humidity at proper levels. I think if it is easier to maintain proper husbandry then the snakes are happier with it being steady all the time! Now I have room in my house!!!