Virtual Reality is a relatively new thing when it comes to technology, regardless its already ahead of a lot of other technologies and has been adapted to so many different fields and uses. Architecture is a massive field in which VR has been adapted for, in the short time its been available its gone from being able to view a building in a 360 degree image, to now being able to view, walkthough and even edit your model all in VR.
As Virtual Reality has been used in architecture for a short while now its been found that there are many different uses it's not just for presentations and visualization it can also be for so much more, most people just haven't considered it yet. Such as when you're using VR you can convey your idea in a completely different way and medium compared to the standard way of a set of drawings or even a 3D model. The standard that is in place now just isn't even comparable to what it will be in 5 years and some larger companies are starting to see this and invest in different options. Even though larger companies are starting to use more futuristic ideas and ways a good majority of small and medium size companies just aren't even considering it because they have these predisposed ideas about what it takes to get to that level or what it costs. But in reality the cost is quite small going down and the benefits in my opinion would pay it back quickly, when you're presenting and working with your clients VR and AR can help convey what you're trying to do and help them understand what the finish product will look like. Using this has proven to help people connect with the ideas and get them excited about it, and when your client gets excited about what you are doing they are more likely to be pleased with your work and recommend you to others. If this would help you close deals and gain new clients that initial cost is quite minor.
Its been proven that when a company consistently uses VR during the design process of a project that they catch more small detail items and design flaws allowing them to fix them quicker and have less issues in the future. This actually saving them a significant amount of time and money that can be used in other areas. The benefits and ease just make integrating this to be a must in today's time.