A heads up to those interested, Vol 1 to 14 of the Classic GIJoe reprints are on sale this weekend on Comixology for $6.50 each ($5.50 for volume 1). Works out to about 62 cents a comic (and less if you have discount iTunes cards)
These volumes cover the original Marvel comic from #1 to #145 and (and vol 14 includes the TF Generation 2 preview / crossover).
It's only one volume short of the whole run.