It depends on your definition of good prices. At some collectibles fairs you can jag the occasional deal, but rarely so now. There are some places to get them on line but mostly in the US (New Kelly, Tommunique, Top Shelf). Postage and the current exchange rate are the real killers here, unless you are in the US where you can often get 90's boxes for USD10 or less. There used to be cheap boxes in OZ- I still have a box of 1996 Marvel Masterpieces I bought for $30 from a comic shop in Perth (going rate 300USD+) and several boxes of '95 X-Men chrome dumped for $15 at a swap meet in Perth. Those were the days. I digress. If you find some cheapies (in the US), see if the seller will pack them in a large USPS flat rate box. Check the rate on line, but postage for the last I got was USD90 and you can squeeze a number of boxes in to spread the postage.
Good luck Michael and if you get some have fun!