Organically grown bud can be much cheaper to produce, ingredients are not hard to come by, and a higher quality smoke is the end result when done right.
A trip to a major hardware store like Lowes or Home Depot can hook you up. A simple shopping list, one bag of sphagnum peat moss, one bag of perlite, one bag of compost, a small bag of Epsoma brand general gardening fertilizer (dry). Mix up your soil (40 % peat moss, 40 % compost, 20 % perlite), put it in your pots, add the amount of dry fertilizer recommended on the Epsoma bag, mix it well in the pot, add seeds, clones or already started plants, and water as needed to maintain moist, but never wet condition.
Topdress 1 tsp of dry fertilizer every 10 to 12 days, until flowering (in the meanwhile, get on Ebay and order some High Phosphorous Bat Guano, some Worm Castings, and some Super Plant Tonic). When preflowers show, top dress a couple teaspoons of of the High P Bat Guano, two weeks later repeat, topdress some Worm Castings (1 tsp weekly), and mix up some Super Plant Tonic (beneficial bacteria & fungi for your root zone) and water in, that's all you'll need.
No need to even make tea. Simple, cheap, and effective. Wheter or not your buds will make weight, and be potent, depends mostly on genetics. I recommend anything by Bodhi, Insane Seed Posse, or Chimera, all those fellows turn out quality genetics.
If you don't over water, and don't over feed, it will grow like a weed. Simple works.