Love it but one thing – Plants vs. Zombies™ 2 Review

I personally love the game and its content but shouldn't there be a way to unlock the plants you have to buy...the old plants are the original and my favorites.. Can you at least make them available in gems because I'm not very comfortable so if you could, please make a way to at least make some of the accessible to unlock by beating certain secret challenges or really hard courses
Review by Omggzzz on Plants vs. Zombies™ 2.