When is it time to replace sliding doors?

Hello everyone.

I’m wondering about the right time to replace a worn‑out sliding door rather than keep repairing it. I came across an informative piece here: https://www.dooronthego.ca/when-should-you-replace-sliding-doors/, which outlines signs like draftiness, difficulty opening, or noisy tracks.

Has anyone replaced their sliding doors recently? What were the key issues that made you decide to replace instead of repair? Also, what factors should homeowners in older homes consider (budget, energy efficiency, alignment, sealing) when making this decision?

Thanks in advance for your advice!