If you use folders to keep things separate and take advantage of the compressed view (accessed by pressing "2"), I find that Reader is extremely usable for deal

If you use folders to keep things separate and take advantage of the compressed view (accessed by pressing "2"), I find that Reader is extremely usable for dealing with large numbers of feeds - I'm at 116 subscriptions right now. Admittedly, that isn't anywhere near the 1400+ subscriptions you claim (how do you have time to deal with all of them?), but I feel that Reader would scale well if I did increase to that number. I probably wouldn't be able to deal with it, though.