[foxyv]

I think the greatest advantage of indoor gardening isn't the ideal lighting and temperatures so much as pest and humidity control. Indoor gardens don't suffer from birds, insects, and rodents like my outdoor plants. (Or my Mom's chickens =P) In addition they don't require half as much water as my drip irrigated plants.

Even if you just keep the plants in the garage it's a huge advantage if you live in an area with lots of pests. Also with the emergence of cheap LEDs you can keep light on the plants without the huge energy costs of fluorescent lighting.

Not to mention it's kinda pretty to have walls of plants in your house =)