I started moving my entire Harrah's and Nevada collections into airtites with rings last year. Yes - it is expensive.. but I buy them by the case (250) - 1-3 cases at a time - and keep them in 2x2 twin-rowed boxes. My last inventory convinced me that 30 cents per chip wasn't all that bad compared to the amount of my investment in the chips. In fact, the price of an airtite is usually less than the cost of shipping.

I buy mine from JP's Corner. Tell Jerry that Jill in AZ sent ya. He'll be glad to know I still send chippers his way