We paid $12 for the .co and lost tons of business from potential customers trying to email us at the .com. We finally caved and paid $9,000 for the .com. It's been 100% worth it for our business to have the .com.
Do you think the loss of business was partially because your company chose .co instead of something else like .io? I could see myself mistaking .co with .com but not .io.