When I work with clients, many of them are mostly serving local clients, so even though they are finding their clients online, they are actually serving them within a local area.
And what I have noticed, not only with my clients but just with businesses in general, is that so many of them do not have websites at all, or do not have websites that are up to date and really attract their ideal clients, probably because they are relying on word of mouth referrals and Google searches.
But a website can be a huge boost to your business and it really helps people to trust you and make that investment, especially as your business is growing, it's getting bigger.