Developers will see value in a product if they use it or see it being used and realise it could improve their work. Less about 'perception' of value. More, is

Developers will see value in a product if they use it or see it being used and realise it could improve their work. Less about 'perception' of value. More, is this something that will help me enough that it's worth the time of integrating it into my work flow. As mentioned in another comment, it also depends who's money it is as to how that value tradeoff looks. The company they work for or their own.