Wow. A long thread and I've missed out a lot of posts, so apologies if this comment has been said by someone else...
My thoughts of the ADVENTURE PATHS are that they are absolutely superb, and deliver a great series of modules that propels a party from 1st up to higher levels having a linked, common theme with enough difference in each module that the players stay interested and motivated with fresh challenges and new encounters, 'bad guys' and terrain...
I would say Paizo would be utterly insane to move away from a stable product model such as these, which is guaranteed, predictable income for the designers, and represents conintual deliverance of bottom-line from a business perspective.
From a gamer's point of view, they could of course be enhanced in many ways... I would personally enhance them by the use of online pdfs like MINIATURES FLOORPLANS that could be downloaded, so that encounters using miniatures can use awesome-looking 'official' battle layouts, making use of the old wipe-off pens on the battlemat less frequent. The use of more pictures, HANDOUTS and the like would also not go amiss - I feel this is one of the weakest areas of the Adventure Paths, and I would be happy to pay extra for these as available downloads - the good old-fashioned hand-out booklet.
So, for me, make each ADVENTURE PATH available as follows:
1) Purchase the hard-copy module booklet.
2) Download a module pdf.
3) Download the Miniatures Floor Plans pdfs for each module.
4) Download a booklet of pictures and Handouts in pdf for each module.
Of course, Paizo could ALSO still release modules in the traditional 'one-off' format, and in MEGA MODULE formats that contain all manner of extra goodies (like all the above four points in one physical boxed set, plus special limited-edition dice etc. BUT, I'd make this a 'both-and' on top of the usual Adventure Path system.
So, in summary:
- Keep the ADVENTURE PATH system,
- Add more optional pdf download options,
- Keep singular MODULES,
- And add the occasional release of limited release, all-singing, all-dancing MEGA MODULES/CAMPAIGNS (like the old D&D boxed sets such as Menzoberranzan, but turbo-charged).
Just my thoughts...