According to my readings, "You Bet Your Life" is one of the few game shows available in the DVD format and it remains unlikely that "Match Game", "The Hollywood Squares", or "Press Your Luck" will be on disc in the distant future.
Game Show Network's classic programming is unique from any other network, broadcast & cable. In all my years of taping programs from the past and present, many of them haven't aired on television in years, and you cannot expect "GSN" to continue airing everything you see right now in another 10 years, so the constant graphics is not helping viewers and/or archivists until that time comes. Video cassette recorders exist not only to tape programs when you're not around, but to keep certain programs (live events, specials, rare TV series, or your favorite programs in general) "alive" long after they're no longer available on TV.
There may be DVDs of numerous TV programs now, but don't expect most consumers to pay over $50 for series with multiple seasons when they can easily be taped on a blank VHS tape under $5.00. I may be in the hole, but I'm willing to continue defending my stance on TV network graphics and game shows.