Getting Certified could potentially increase your sales, get your company promoted, and it helps you find buyers easily. You should definitely consider getting Certified.
I was also thinking if you can sell without being Certified, why to spend money for this, but after talking to the Support team, I have decided that it is worth the money I pay. Now, buyers find me and my products more trustworthy.
Totally. Since I became Certified, my products are advertised everywhere on the website, my products are listed on the first page and I have received more orders than before.