Like the name suggests, a Prestige Domain allows you to use a prestigious, easy-to-remember domain in marketing.
A magnetic car sign for example that says…
go.ecommergy.com
...is going to work way better than...
https://www.sfi4.com/1234567/ecsub
The latter is hard to remember, hard to quickly write down accurately, hard to type, etc. The former is easy to remember, easy to write down, easy to enter. It's the same thing on business cards and other areas where you’d spell out or SAY (such as on a radio spot) your URL.
Also, some search engines will not list and some people will not even bother with a URL that contains what is obviously an affiliate’s or sales rep's ID number.
You can learn more and purchase your own Lifetime Custom Prestige Domain HERE.
Once purchased, your domain can be set up and managed at this page.