Since when is the sun worse than indoor lighting?
Conversely, indoor tends to be more like sharing a bottle of wine with someone - you're going to get far a stronger kick out of it and it's going to last longer. It also tastes much nicer.
I'm not disputing what you're saying, growing outdoor is cheap (virtually free) and therefore attractive. Typically there is little pride involved and the quality suffers. However, well-grown outdoor fills a niche just like well-grown indoor does. It merely has a bad reputation.
On a side note: outdoor plants grow much larger, and as such have much larger yields.