You clean and paint these prior to selling. You don't replace them - you will never get your money back AND the new purchaser may want something different.

Address your condensation issue (see many, many posts on how to correct by using the search function) and the next several years in this home will be more enjoyable!

condensation problems first as said, new window will have same problem or could be worse. Perhaps check that the weather stripping is in good order and no other issues.

By “address the condensation issues” mentioned above, it means you should lower your humidifier to 30%. Also at night don’t pull your drapes or lower your shades the entire way. Leave them open about 1-2”.

A buyers house inspector, will most likely notice the windows, and buyers will ask for money off the sale to replace them. Unlike the others here, I would replace at least the worst ones.

70% return is 30% lost(assuming the rest of the windows look as good as this one) plus there is no guarantee this problem gets better or worse.

I’d check and see what the actual humidity levels are and Focus on the cause.

That metal spacer could also be contributing to the issue because of the conductivity at the edge of the glass. Cracking open the window a bit will let some of the humidity escape if high humidity is the true issue. If not, its because the glass isnt very efficient. The fact that you say the windows are “ drafty” tells me they are not very air tight or efficient.

That could be contributing but the pattern of condensation seems to be affecting the center of glass as well..

Window Pro, you might want to take another look at the picture.

I think that may be duraseal in that space, but that's really just a guess since the picture wasn't intended to highlight the spacer. In any case, and I may be mistaken, but I am not seeing a metal spacer in that picture.

The appearance and level of the condensation on that glass suggests that the indoor moisture level is exceptionally high. That's a lot of water.