bubble buckets

Hi, I'm looking to get back in the game after 10 years of not growing. I'd like a couple of experienced growers to chime in with some input on here about the plan I'm proposing to follow to get things going again on a smaller scale than before. Maybe your experience can save me a few pitfalls...

Is this a big mistake on price from Wal-Mart? I am thinking of ordering a few but want to see what others think...