> There was no enormous R&D budget required to develop the replaceable component. Are you sure about this? Just because it is one small part of a complex devic

> There was no enormous R&D budget required to develop the replaceable component. Are you sure about this? Just because it is one small part of a complex device doesn't make it low cost. > By all means let them make money on the machine Ok...so the machine becomes (for example) $1m instead of $10k. The financial cost to use the machine remains the same.