I don't think you're one of the happy few.
You're more like one of the happy many.
Amazon has sold an estimated 70 million Kindle readers.
Ebook sales are at least 20% of book sales.
I read 60+ books a year. Almost all on my Kindle. My partner and my sister are similar. I know of one person who has bought a Kindle and not used it much.
Australians alone are reading 1.6 billion pages a month on Kindles.
https://www.techguide.com.au/news/gadgets-news/australians-d...
I didn't read OP's remark as "few people make long use out of e-readers," but rather "many more people have e-readers and don't use them," which I'm willing to believe but don't have any evidence of. At the very least it's likely to reflect the case with physical books. The people who don't read you don't hear as much from.
Without knowing the physical book equivalents, these numbers mean very little.
I'd be surprised if a lot of people aren't like myself. I prefer physical books at home, but if I'm out and about travelling I always take my kindle.
Saying that, I rarely buy ebooks. I generally 'find' them online but only if I own the actual physical book. If I don't have the physical book whilst I'm travelling, I'll buy the eBook and then I'll usually buy the physical book too.