Yet another option for y'all: Jos Bank Shoe Trees are currently 2 for $25. Made by Woodlore. Your choice of solid or split toe. If you buy $100 worth of stuff in-store, you get an additional $20 off.
The "epic" shoe trees look nice, but personally I don't think they will make a lick of difference in the maintenance of your shoes. I'd rather buy the solid toes from JAB for about 50% less.
On a related note, the last time I bought shoe trees from JAB I paid about $6.50 per pair. Unfortunately I think those days are gone. I'm going to buy another 8 pairs today, so $10 per pair. I think this is the least expensive shoe tree option these days.
Directly from the factory seems to be the best deal. 2 sets for $20 (if I am reading this correctly):