I wasn't buying books from them in 1995. And unless you were an extremely early adopter, you probably weren’t either. (I bought my first book from Amazon.com in December 1998.)
For most of us, the Internet was still a relative novelty in 1995. (I did start using email that year, however—but strictly for business, and on a closed network.)
It is difficult to think of Amazon being 20 years old.
That could be because the Internet seems constantly new and changing…or it could be an indication of how old I’m getting!