I have seen a variety of Bud/Bloom/Burst etc at a wild array of prices. Some folks I know swear by stuff that costs $90 for a quart. I have seen stuff in the grow store that costs more than twice that.

I personally have not been that impressed by the results of using such products compared with not using them. I grow outdoors for any kind of budding and I have well prepared soil around my plants. This year I used Bhudda Grow and Bhudda Bloom. There really was not much difference from the plants that received that treatment from the ones that didn't. I averaged about 1 lb per plant but it ranged from 4 oz to 2 lb depending on which strain.

So it is hard to say for sure but I know folks that get 4 lbs of buds each from Purple Kush plants. I got about 6 oz from mine.