Yes, this is the real problem with digital photography. With film cameras the sensor is updated constantly so a 50 or 100 year old camera can use modern film for much better pictures than it could take. Old film images can be scanned with today's scanners for a better images than you could have scanned 10 years ago. With digital, the day you buy it the sensor is as good as it will ever be (firmware upgrades notwithstanding) and the moment you take a picture the result is frozen in time, a higher resolution image can never be derived from it.
Film formats go out of production, then you have to cut it yourself which is annoying but try cutting a 60x45mm sensor down to 36x24mm...
I do use digital, it is simply faster for a lot of jobs where I need to produce results that afternoon. Film used to give me this but today it does not; I suppose if all I did was photography then I could shoot, process it and have results this afternoon but aside from Polaroid or other instant film I couldn't have results in 5 minutes which I can with digital. That is digital's advantage, it is available right now but that is also its downfall for it is obsolete the moment after!