Do I love Gold Rush? Yes I do. I already had a Klondike and you either love the randomness of the slot machine reels in the game or you don't. I love them as do friends who play the machine.

Gold Rush is the four person version of Klondike and has the same style of reels with prospector/mining things.

I love the vibe for playing and the highs and lows of getting a jackpot reel setting and then hitting an advance and losing the chance to get the bonus. Again, personal taste.

Extra trivia for you:
Klondike has both replay and Add A Ball features. Single Player.
Gold Rush has both replay and Add A Ball features. Multi Player.
Yukon has Add A Ball feature only. Single Player.
Yukon Special is like Klondike but has Add A Ball feature only and numerals on it's reels. Single Player - Export market. Playing field has different artwork with prospector cooking food and bear sniffing behind him - cute fun stuff.
Jackpot is like Gold Rush but for the export market and has slot machine pictures (bars, cherries, bells, oranges) on the reels. Export market.

This is a very rare game, and additionally there are reportedly very few survivors left.
It has the classic Christian Marche artwork that collectors go crazy for. I love the look of this game. It is a prospecting theme...so it is quirky and desirable.
There are some incredibly interesting standup targets that trigger slot machine reels. It's just a really cool toy that is lots of fun. Add in an up-post between flippers, 5 pop bumpers, 3 kickout holes, and a really unique gap between the flipper and adjacent slingshot disallowing cradling the ball with an energized flipper.

There is good reason for this pin to be so sought after. If you come across one, I definitely recommend picking it up.