If you shop around, you could probably find it a little cheaper. If you are stuck on having a humidor, I would recommend finding one in the the 300 - 500 ct at a minimum because your collection will grow. Many go to a coolidor for storage, which is an inexpensive way to store larger quantities. If you go to recent articles on CigarGeeks, there is one one coolidors, or you can go to tupperdors too.
Another option is shop craigslist