So you've seen the Maltese Falcon, and I'm sure you're aware that a certain Wizard of Oz starring Ms. Garland and Ben-Hur starring Mr. Heston are remakes as well. Or do those not count because most people forgot the originals and the remakes are now considered to be classic?
Your logic's flawed in the fact you won't see remakes, but yet acknowledge there are remakes that are the definitive version of a film. You would never know what to consider the definitive version if you don't see remakes. I'm pretty sure this new 3:10 will be held in higher regard than the original, a film by the way many have not heard of to begin with.
Also, as I said earlier, because of remakes, people do often see the originals where they may originally never had any intention to do so
You yourself are doing it for the original 3:10. How is remaking something a disservice?