In the Team Lava Days - Gem sales were came few and far between. When Team Lava put up Gems for Sale, it was a big deal to the players.
Now, with Storm 8 - Gems are constantly up for sale every other day, or so it seems.
The thinking behind that is to make the players buy their gems for sale, so the players can finish the goals.
#2. - To Jump to 40 Parts to Build One Oven is Another Gem Orientated Gimmick.
To Soften the Blow - Why Couldn't Storm 8 Slowly Increase the Goals.
#3. - Why was Restaurant Story goals put back to normal, but not Bakery Story's?