I suppose I never thought of my website for the purpose of selling, though I have made a good living from it for the most part. I also have a gallery that takes care of my sales for the pieces they have exhibited and the ones they have on hand, or if they have collected the work via the gallery or if buyers have filtered through them, etc. That only rarely gets blury. When it does, we easily work out the commission percentages.
But back to the website thing. It's there for multiple purposes. It's there as a portfolio mostly. It's there as an archive and it does run on a database. I use the backend to keep track of my sales and the locations of the work, as well as a variety of other information on each piece of artwork. there's a thousand pieces in there. I needed something to help me keep track of everything.
It was also put there to solicit galleries, museum curators, granting resources, and of course, collectors. There are options to buy the work, but the prices are not seen unless you click on the "price" link, then it pops up in a window. I didn't want it to be all about that. However, galleries do want to know your retail price range, so they do need access to know.
I do use some social media and I have sold a bit through Instagram, but all my social media (for me) is there for the purpose to direct people to my website. It's where all my information is: news, events, new work, my blog, different series of work, my CV, statement, about pages, etc. To me, the cost of running it does not matter because it's just part of being an artist. Same with the storage facility I have to pay for, which is more a cost a dislike to pay, but it's necessary. I have about 250 pieces there that have not sold and probably another fifty sitting in the gallery. I keep my flat files here at home, and that's another 75 or so. This all might be TMI, but the website helps me keep track of this. It's definitely worth it for me.
At one time, I had about ten of fifteen different domain names pointing to my site. That was a long time ago. I once sold on eBay and had ebaypaintings.com and got a letter from their lawyers, but I ignored it. I had badpaintings.com. I had folk-art.com. I had a lot, then sold them. But now I just have a few with my name in it, and the first domain name I ever purchased in 1996.
I don't have Facebook anymore because I hated the social aspect of it very much, so I completely deleted it, which I wish I hadn't now because that would have been 2000 people I could have told about this forum!