FYI: This page may contain affiliate links (details).
I've been using GoDaddy for over a decade. It's one of the oldest and and most popular domain registrars, and for good reason.
For starters, pricing is highly competitive. You can often get a significant discount on the first year of your registration, steeper discounts if registered for a longer period, and can usually find some great promo codes and discounts with a quick internet search (RetailMeNot, Coupons.com, and GoDaddy themselves to name a few).
GoDaddy also offers a wide variety of domain extension and has a very powerful interface to customize your domain and modify settings. If you are a shopper who likes to compare multiple options, Domain.com, BlueHost, and HostGator are also widely used and popular domain registrars worth researching.
Having a powerful interface to modify settings is crucial, and thus, why choosing the right domain registrar is extremely important.
I'll give you an example of what happened to me recently to illustrate my point; I had been tasked with setting up a business phone system for a client that had already purchased a domain. In fact, the client had purchased a website builder plan and in addition, a domain name and business email service. The domain and email service, however, were part of a re-seller plan, and although convenient initially, I quickly realized the pitfalls.
The major downside was not having a powerful interface to modify the settings needed to implement the business phone system. Because the client did not start the process by purchasing the domain from a reputable and robust registrar, I had to transfer the domain and email service to their originating companies (away from the re-seller, and yes, a headache as well as time consuming), wait 24 hours for propagation and then restart the process of implementing the business phone system.
The bottom line, choosing the right and reputable domain registrar is of utmost importance and why I highly recommend GoDaddy. If you're starting a business, that should be one of your first steps, then you'll be able to utilize their interface to hook up, add, and link to additional services your business may need down the road.
For additional web and tech resources, check out our Small Business Resources page.