This is about TLD chicness.COM is the most common, followed by NET and ORG
Instead of buying domain SUPERGUY.COM one might e SUPERGUY.PRO from most of the domain name vendors.
A Bit of History...
Way back in the old days of the Web, when "all of the good domain names were taken" on .com, there was an initial expansion of new TLDs (including .info and .biz, which unfortunately ended up largely misused as junkyards for shady domains). One of the new TLDs in this group (back in 2004) was .Pro.
.Pro was conceived of as what would now be called a "Premium TLD" -- that is, a .pro domain would cost more than a domain on a normal TLD like .com, because it would carry a certain cachet that a normal .com (or .info, or .biz) domain would not. (I remember looking into .pro domains a decade or so ago, and pricing was several hundred US$ a year, or roughly ten times the going rate of a .com domain.)
.Pro domains were supposed to be reserved for "licensed professionals" (think doctors, lawyers, etc.). In fact, registrants were supposed to provide documentation about their licenses as part of the registration process. A few years later (2008), the list of eligible licensed professions was expanded (including Educators, Physical Therapists, CFAs, and many more).Source:
https://www.symantec.com/connect/blogs/look-pro-original-premium-tld
Anyway, you can get one if you think you are a PRO.
You can get one if you know you are not a PRO.
Either way, you have to pay. It now is about the same as the COM thing.
I found a vendor who will sell the first year for about $2 So I bought one. Will I tell you what it is?
No, I am a pro and I do not put my PRO domain name here to get cheap publicity. Like a PRO, I will have to pay for the publicity. (After I makes some money.)
Look around and find a vendor that offers a cheap first year on the less-used TLDs available.
I recommend PRO for anybody.
(No, I do not work for PRO. I am a PRO.)