Bill's are the best I've ever seen. His attention to detail is perfect. He also custom made my wallet and checkbook to exact specifications.
But, no matter how good the case is, it's still not a good idea to store a knife (or gun) in a closed up case for a long time. Moisture inevitiably gets in and gets held near the knife. It's best to allow some air circulation. Cases are great for carrying knives, but use boxes for storage.
BTW, be very careful about those desiccate packs. They can backfire on you big time. About six months ago, you'll recall a thread here from a fellow who stored a number of valuable knives in an airtight ammo box with a bunch of desiccate packs as he took a prolonged business trip. When he returned, all of his knives were rather rusted. What happened? Simple: those desiccate packs are made to attract and store water. The last thing you want close to your knives is water. The trick to using those packs is that you have to dry them out before you put them in the container. This usually means baking at 250 for 16 hours. Take them immediately out of the oven and put them in your container and close the lid. The packs will absorb and trap what water is in the air in the can, but that shouldn't be very much. The trick is that we don't want the desiccate to get to saturated such that a rise in temperature, for example, might cause them to actually give off water. On the other hand, these packs are brutal on wood, bone, etc., materials often used on handles, and death to leather sheaths. And, of course, desiccate packs to absolutely no good in a cloth case. They'll absorb water through the cloth and trap it near your blades just waiting for a change of environment to allow the desiccate to release the water it has stored.
Some time ago, I asked over on rec.knives (the usenet news group), what the best overall temperature and humidity for storing knives is. There are several professional museum staff over there, you know. The consensus was 50% 70F.
Chuck