I have to agree with you on the sliding windows. I've been looking for a long time for an affordable yet not rotten to a pile International Scout 80. The first two model years had sliding windows instead of roll-up windows. The following years had roll up windows, and to me are much more desirable just for the reasons you stated. Our YJ Wrangler has the full soft top and doors, and the zip up windows are a pain, but used hard doors are outrageous in price, plus the soft top for the soft doors will not fit the hard doors, so then you have to find or purchase a new top. For the short amount of time the top is needed in the South, I'll just put up with the zip up windows until a good deal comes around.