"We're just getting better at our trade, man. We know what we're doing, and the reason why is that we've spent 30 years doing it. There's nothing that can replace that"

In this quote, Alan Vega is expressing his confidence and know-how in his craft. He believes that he and his colleagues have actually become masters of their trade through years of experience and practice. The phrase "getting better" recommends that they are constantly improving and refining their abilities. The reference of "30 years" highlights the devotion and commitment they have put into their work. Vega emphasizes that this level of experience can not be changed by anything else. It is a testament to the worth of effort and determination in attaining success. Overall, this quote showcases the importance of experience and the pride that includes mastering a trade.