I'm in the camp of getting the single higher grade copy. A similar analogy for me is i'm really into high end audio equipment. In the past, especially with more limited budget, I would buy a mid-range DAC or amp and/or multiple mid-tier headphones or speakers, rather than bite the bullet and spend up for what I really wanted (higher end, but a stretch monetarily). In the end, the knowledge that there was something better out there would gnaw at me, and I'd end up upgrading to the higher end one anyways.
This resulted in: 1) costing me much more than if I had just bought the higher end one first (friction / transaction costs of selling the mid-range one plus often the higher end one is now even more expensive), 2) All the time I spent with the mid-range one, I could've been enjoying the higher-end one.
A bit different of course, but I think some relatable takeaways.