Anyone Running their business Completely Depending on Email Marketing?

Is there anyone in here running a business almost completely depending on email marketing?
( I mean more than 90% depending only on emailing)

I am just curious am I the only one in this digital world depending on that old method OR there still some mates on this planet like me?

( Please do not ask what is my business )

Most of the emails throughout in spam, and you can not target recent relevant niche market through EM, using old niche data there might be possibility that someone else contact them to fulfill their needs

It's better to generate fresh leads and allow them to contact you than you can convert it to a profitable sales

Less people nowadays actually use only email marketing (and with good reason too). You really might want to consider expanding you're hoping to keep up with competition. But if you think it works for you, and if it converts enough sales, then go for it. Honestly though, I don't think many people would use exclusively email marketing