Are you planning on buying more cigars? How many cigars do you have right now? If it's less than 25... DO THIS!
From what you said, it has seem you bought a POS humidor, correct?
Instead of buying a new humidor. Why not start out simple and use a tupperware with a good seal (assuming you are new into cigars and don't have very many sticks), use that and throw in a couple Boveda Humidity packs (72*).
Stick around the forums and read some more about humidors and hygrometers. Stick to this for now, it's hands down the easiest and will cost you little money.
