I have no restrictions in terms of money, i could hapily put $200 into something, pint being there isn't any point. Yours yields little more than mine does, despite you haveing an additional light and shit loads of space, mine cost a few quid, that costs many.
And why compare?
well because you have spent $200 plus, and i have spent maybe $25 and from everything so far stated they perform the same.
And my plant is 1/3 the size of yours? lol, so you'rs is 15 foot tall yeah?
Who cares though, we both get simliar results, if you feel that money is jsutified then whoop, myself, i am fine knowing i spent a fraction for same results. You copare it to having rain boots, or plastic covered shoes, not quite, more like me having rain boots and you having a designer brand set of rain boots, sure it can makebyou feel good but boots are boots, your system does NOTHING that mine doesn't, just as the designer boots wouldn't.
Remember, it's a bucket of water with air being supplied to it, doesn't take a degree in engineering to make one, or industrial materials