... is that it's bad advice.
I used to think the old adage was spot on. Seriously, why would you fix something that's not broken?
But now I can think of several reasons to disagree. There's a better way. I'm tired of the old way. And most importantly, because the system changed.
The old ways aren't broken. The old ways work just fine in the old system - but that system is closer to extinct every day. We can't grow by being safe, by following the masses and by sticking with the "if it's not broke" crowd. The world around us is changing and we must change or wither away.
If you're reading this, it's likely that you have more resources than 90% of the world. The hard part is using them as a catalyst for growth. Change is especially hard when it's not mandatory (read: when you're comfortable).
So the way I see it, we have two choices. Wait until you're uncomfortable and left with no choice but change - or - take a chance and try to fix something that's not broken before that day comes.
The good news? It's all up to you.