More Gold?

How do you get more Gold? I've completed all 3 objectives for the Sushi Bar, the Italian Restaurant and the Diner. I'm almost all the way through the Mexican restaurant, but the upgrades are INSANELY expensive and cost gold. There seems to be a finite amount of gold that you can earn in this game, and the farther along you get, the more things cost. Is there any way to earn more gold????

I agree with Michelles_Bells! What's the deal Youda and Big Fish??!! There's no way to get enough gold to buy the upgrades and some of the challenges are impossible to win without upgrades like a faster conveyer belt! I like this game a lot, but it's got SERIOUS problems!! I tried to go to Youda's website and leave a comment, but I don't see any place to do so.

Ok, I went back to Youda's website and found a contact form. We'll see what they say, if anything, about this problem.