Main reason for using abs is the price.
I am printing at 11 euro’s for 1 kg and pet is 25 euro’s for 0.5kg.
Haven’t had a lot of problems with larger abs prints and bed adhesion.
Enclosure, pre heating the printer for at least 30 minutes for the glass to be hot and the enclosure warm and use abs juice.
300x300mm beds are sold by a number of Chinese suppliers but that seems to be the maximum size sold