I'm working on a travel site. Since the season change and winter is coming, I have to remove old offers from summer. Right now there are about 500 offers that should be removed (better term would be to be "disabled", since we will reuse them next summer).
I'm afraid that disabling or removing a high number of pages will have a negative impact on SEO.
What should I do? Obviously there will be 404 errors. How to handle them? Redirect to the homepage or use custom 404 page with notify that specific offer is removed and not active anymore?
I also have an option to put summer offers in hidden directory (not visible on site) but in that way people will be still able to find summer offers via search engines.