I tend to think so, but it all depends on what the next eventual RDR game is like.
With the GTA games, when I was playing GTA V, it was similar enough in quality to GTA IV that I could still enjoy it. But when I tried to go back to Vice City at that point, the drop in quality made me just want to play GTA V instead. It was just that much better. As much as I loved RDR1, it's hard to play it as much now, because RDR2 just raised the bar too much