You can talk a good game but at some point in the creative process the people with the checkbooks are going to want to see your work. Sure, you can send them to your website and they can look at your work on their phone. If you're lucky they'll have their laptop handy and then they can see your work on a 13 inch, coffee-spotted screen with lots of glare and reflection layered over the top. Just what you need in order to show off the nuances of your incredibly detailed technique, right?
Or....you could actually make prints as you go merrily along your career path, and with enough prints you could put them into a book, or an album. You could make a book of images with similar styles and your work would look really cool when you showed it to clients in the right now, on the spur of the moment, in a quiet time between rounds at happy hour.
The benefit of the book I made above is that the 10 inch by 10 inch prints which grace every spread are more than big enough to show detail and craft and yet, closed, the 10 x10 book is wonderfully portable. It fits in your camera bag, or your computer bag, or whatever you carry around with you.
It works in almost any light. Your client can hold it in their hands or they can put it down on a table and it will lay flat. They get to leaf through your art at their leisure, their pace. They can stop from time to time to tell you once again that you are a genius.
Multiple people can see it from multiple angles. If the power goes out you can step into the fresh air and still show your work. It's like magic. And taking the time to print your images, sequence your images, produce a book and carry it with you shows the possible source of work and income in front of you that you are serious. You've thought about your work, its presentation, and it's overall consistency. It shows you've got skin in the game. Commitment.
Wow. That's a lot of marketing packed into a small, square space. Get serious. Make a book of your work. Just a small one with 30 photographs. How hard can it be? You are serious about all this, right?