While I've never seen anyone take the opposite opinion, I'm glad that the Game Corner is dead, at least how it was pre-HGSS. I really dislike slot machines as they are a combination of random (which is why I dislike gambling. Also, I pick Flamethrower, etc. over Fire Blast, etc., so that should give you an idea of my feelings on it) and boring (zero imput). I will admit, the only flaw in HGSS's is the fact that the international version doesn't let you buy coins, but at least Voltorb Flip required skill and was rather fun to play.
I'm actually waiting for slot machines to make their comeback (which they won't for gambling reasons, unfortunately). Voltorb Flip is nice, too, but yeah slot machines take priority. The ones in FRLG I actually had enjoyed because the slot symbols were easily distinguishable enough for me to repeatedly score triple 7s for fun (i.e. Slots do have some skill to them in FRLG). Veilstone Game Corner, home to one of the best tunes in all the games, was one of my favorite stops in Sinnoh for having those cool Clefairy-based Bonus Rounds that kept me around to play for more.
Also a brief shoutout to the Roulette in Mauville Game Corner. I was never good at it, but for some reason I always enjoyed playing it more than the slots there. Same goes for the original Card Flip in Goldenrod.