Saying, “Yes,” to something does have costs regardless if there is not a monetary one. It’s always tempting to sign up for something new or try out a new technology. You have to manage it and this takes attention. If you are not committed, then it can become a distraction. Those little distractions pull from you over time and chip away at your ability to focus.
I put a premium on focus. Focus is what gets meaningful projects completed. Building systems, writing books, growing long-term relationships and winning new business take intense focus.
If you are always piddling with the newest and flashiest stuff, it only dilutes your attention and focus. Is the cost really worth it if it is at the expense of what really matters?