1. The theme supports child theme but no child theme is included in the package. However, there are available commercial child themes that you may buy from users and other third party coders.
2. Being a wordpress theme, Clipper can definitely scale up even with a number of pages. It just boils down to how much the server specs can handle.
3. Recaptcha can be disabled through the Classipress admin settings. Likewise, there is an option in the admin settings to manually approve submitted coupons.
4. You can upload the logo through the admin likewise you have five color scheme to chose from of which still can be set through the admin settings.
5. You'll get support for life of which is done through the forum.
6. You may check it through this page
http://www.appthemes.com/about/.
7. No option on this yet but this can be done through code customization. The theme is not encrypted and so it can be modified according to your requirements. Implementation is just dependent upon your coding skills or you can avail the services of an experienced coder to do it for you. Appthemes also have certified community partners
http://www.appthemes.com/partners/ that you may contact for customization jobs.
8. Clipper includes an importer facility which allows you to import content from other systems via a CSV (comma-separated values) file.
9. The same as No. 5.