I know that cigarmonster.com will occasionally have a 250-ct blemish Merger Humidor for around $49. I actually just ordered one for $43 for poops and giggles. I'll report back the blemishes.
However, echoing what others have said, buy more than you think you need. If you are just getting into the hobby, then a 100-ct will be fine for right now. Use that as your learning curve in regards to humidity, temp, maintenance, etc. But you WILL want an overflow solution. Coolers are dirt cheap, and easy to set up and maintain. I bought my SECOND 152-quart Igloo last week due to space limitations. I highly recommend Shilala Beads. But, like humidors, buy more than you think you need. If their website calls for 8 ounces for your box, buy 12. Helps recover faster when opening and closing, and will entail a bit less maintenance.
cigarbid.com (affectionately known as the devil site) also will have deals on boxes. Most of the ones under $200 will be ok for your needs. They're built well (not stellar), and will last. Like others have said, stay away from glass lids or exterior mounted hygrometers.
Use our
Accessory forum for more research...lots of great info in there.
And whatever you do...DO NOT...I repeat...(points finger at newbie with intense scary glare) DO NOT...post pics of an empty box.
(disappears into the shadows)