Nice thing about it is, whatever type of diffuser a person is using, as long as they have a way of extracting it easily it is not a huge expense to change diffusers or even the type of diffuser.
Once the big expense of the pump and hose is in place, a person can play with different types of diffusers or change them out as needed.
At least a person is not starting out all over again with a complete new system.
I think my diffuser disks have been in about 4 years now. I could pull the bases screw in 8 new disks for probably under a couple hundred bucks.
Might not be a bad idea instead of waiting for them to fail.
Another thought I just had, have a spare set. Instead of pulling and cleaning, just switch sets so the dirty set could be cleaned an stored ready for the next "cleaning". Have to think about that.