i try not to get nostalgic for paper or cardboard (keeps the cost down when collecting old games!) but i can't quit my love of the first ~75 issues of Nintendo Power.
my magazine holy grail was to own the first issue of Nintendo Fun Club News. When the price shot up on that and it seemed like it would never be within reach, i shifted and tried to collect all of the Nintendo Power Flash issues (the Canadian equivalent of Fun Club News). Luckily, due to THIS VERY FORUM, there was a kind gentleman from Germany who had a complete set of FCN and NP Flash! i was able to make a deal with him, and i am glad to have them in my collection.
Also, in NP #10, there was an offer for a mail-in exclusive poster ("Team Power Tips"). It took me quite a while to track that one down too.