What it gets right down to is, what works for you. No, indoor growing is not cheap to get started, but you recoup those cost quickly. what I spend in electricity in one month wouldn't buy an 1/8 in many states! Hell, I'll be generous and say it wouldn't buy a quarter ounce.
Now I have several thousands of dollars worth of grow equipment. It took me years to accumulate what I have, and all the items I bought were paid for by working side jobs and ebay sales or I'd have non of it! I've bought a few high price seeds and enjoyed then very much, but I've also had a 7 pack of duds...... ouch!
I just sampled a bud from my Linda Seeds Fat Blueberry. My third grow of it and it is one of my favorite strains out of all the many, many I have grown.
So grow what you enjoy! That's the most important thing! But it doesn't hurt to save a few bucks either!