Things without substitutes
In the business of software, there are no substitute for a great product if you want to truly succeed.
Look at all the companies you admire - the one thing they all have in common, are great products!
It's so easy to get into the habit of optimising everything around the product, as if you're trying to make up for it.
Most of times these problems are problems not yet relevant, and when they become relevant they're luxury problems to have because it means you have a successful business with a successful product.