Whatever decision that feels right for you. There are a large number of vintage blades available. B+B member Mr. Razor has a great collection/museum and website dedicated to razors and blades. If you want to keep a small collection of vintage blades or if you want to experience what it was like to shave back in the old days its all good.
Nothing wrong with trying those old blades and I am guilty of doing exactly that. I successfully completed a shave using a three hole carbon steel blade that is circa 90 years old. Not a smooth shave, not a comfortable shave, but one I wanted to complete, and I did.
I think those red/black Gillette's pictured have a history of being called a rough shave, but no reason not to give it a try. Even with a good vintage carbon, I only give them one or two shaves before tossing, so don't expect much longevity. Obviously if there is rust, keep them as a collectible or toss them.
I'm with you BigJ. Blades are to be used; that said I have few hanging around that came with razors, I figured I'd PIF someday. I received a whole mess of berkeley razor blades and tried one; not a terrible shave.