Big enclosures are not for novice BP owners and that unfortunately how most people start off... with huge cages.

The problem I have with large spaces is the regulation of husbandry aspects. The bigger the enclosure, the bigger the challenge to regulate things appropriately ESPECIALLY in glass. When I see people bragging how they have their ball in a 75gal in makes me shudder at what expense the snake is suffering from incorrect husbandry. Some put in the hundreds of $$ to make the enclosure suitable, but most don't .There are also cages that are made from better material than glass.