You are NOT the only one.
There are three others too.
Everybody else either has external USB drives or uses flash media now. Or even bluetooth to get data from phone, tablet, etc. to PC. That or they just stream everything. Personally, I use an external drive. The only people using internal optical drives anymore are those that are still on older machines, those who are not terrible technically inclined (Which doesn't include the majority of young people who are the main market now) or those who have simply not cared enough to upgrade a case at this point. Also, those using machines for business related functions, as many legal and professional entities still only make data available to the request of other by way of optical disk. So there is still a need for it out there, it just really isn't part of the enthusiast market anymore.