I love quality tools and products, especially when you have taken the time to find what works for your specific use case or body type. That being said, I started slowly shifting to an attitude that, to paraphrase an over quoted movie, "on a long enough timeline, everything is a consumable". The biggest factor isn't so much buying something for life, but buying a product that 1) matches the lifespan of my usage 2) won't frustrate me with its quality 3) will last a length of time somewhat in line with the improvement cycle of that type of product.