Recently on rebelscum.com there has been some discussion about what it must have been like collecting back in the 80s. One collector mentioned an old publication that many would post what they were looking for and what they had for sale. I managed to find one of these on ebay and it is a fun look back. This one was published in 1985 when interest in Star Wars was pretty much gone from the general public.
Kenner toys also featured Walter at New York in 1984 for people to come and view his collection. There are some copies of the press materials from this event floating around that I would like to get a hold of at some point in time.
Finally, his collection was also shown on T.V. before the first airing of Star Wars. Here is that clip narrated by Mark Hamill: