PSA Graded 1979 O-PEE-CHEE Hockey Packs

Does anyone else feel that the chances of actually pulling a Gretzky rookie from one of these is slim to none? Considering there's generally one one per box, I would think that once the Gretzky has been pulled many would stop busting the wax and send the rest in for grading for some return on investment. Anyone else feel the same about this? Differently?
Edited to note that I have a PSA 9 1979 O-PEE-CHEE pack with Stan Weir (Edmonton Oilers) showing on the back. I thought it was interesting to point out because of the similarity in pose to the Gretzky rookie. Check out the link below to note how much it would look like the Gretzky card through the pack:
http://cgi.ebay.com/1979-O-PEE-CHEE-331-STAN-WEIR-NM-219957-/330487365135?pt=US_Hockey_Trading_Cards&hash=item4cf294fe0f#ht_847wt_905
Edited to note that I have a PSA 9 1979 O-PEE-CHEE pack with Stan Weir (Edmonton Oilers) showing on the back. I thought it was interesting to point out because of the similarity in pose to the Gretzky rookie. Check out the link below to note how much it would look like the Gretzky card through the pack:
http://cgi.ebay.com/1979-O-PEE-CHEE-331-STAN-WEIR-NM-219957-/330487365135?pt=US_Hockey_Trading_Cards&hash=item4cf294fe0f#ht_847wt_905
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Comments
I also agree with your post. I actually bought many hockey packs from the 1979-80 year, but they were all Topps. I must have opened at least 2 boxes and only got one Gretzky. It was one of the hardest cards to get that year. He was already a hot card even then.
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep."
"Life is what happens to you while you're busy making other plans."
Collecting:
Any unopened Baseball cello and rack packs and boxes from the 1970's and early 1980s.