The lemonade stands become pretty obsolete after 500 (for the 500 of everything achievement). Maybe in the next update we could get a permanent achievement for getting the lemonade stand up to 1000 (perhaps +1% angel investor).
Secretly, my goal is that by the end of the End Game, Lemonade Stands will be as powerful as Oil Rigs. They should shine as a symbol of your wealth and power. Those upgrades are coming soon-ish.
 "AdVenture Capitalist"){kind=icon}
 "Kick Out Bieber"){kind=icon}
 "Epic Battle Fantasy 3"){kind=icon}
 "Upgrade Complete 2"){kind=icon}
 "The LOL game"){kind=icon}
 "Epic War 4"){kind=icon}
Secretly, my goal is that by the end of the End Game, Lemonade Stands will be as powerful as Oil Rigs. They should shine as a symbol of your wealth and power. Those upgrades are coming soon-ish.