Likely BlockBuster could have been more stable and financed the stores for longer if they wanted to. As late as pre-corona-pandemic there were lots of little independent rental stores specialising in the one niche still available - blockbuster BluRays (and DVDs!) with what had just left the local theaters, but weren't yet widely available on streaming services.
During the pandemic there was a pause in theatrical releases and the little rental chains couldn't weather that, so they disappeared.
But yeah, not that different from today.