Yep, I think that's the basic concept. Most don't start with reef ready tanks, but rather the smaller less expensive tanks to get into the hobby. Me myself, I have a sump but wanted to put a unit on line to see how it performed. This is a super unit that I believe has filled this niche and more. I do agree that the cost is a bit high. But based on pricing of all the other equipment for a reef out there running high, It's not that out of wack for the filtration and skimming that you receive plus the added bonus of keeping the water inside your tank (no sump or siphon overflows). I think if you are looking to keep SPS and thinking that this unit would be all you would need, I don't believe it come close to the flow you would need to matain these corals. This unit does provide added flow for my tank, which I do like. So with my overflow & sump return plus with my closed loop, I am running about 15x to 20x turnover. It also has good bio filtration based on it's design and what the mfr has listed. This unit is very easy to maintain. The skimmer is easily accessed and adjusted and if the pump fails, it's easily accessible. Plus the unit is fairly easy to simply pull out of the water if needed. Also there is no head on the pump (well maybe 6") but this allows for a cooler running pump and I would assume would lead to rewer pump failures. I am not affiliated with the mfr. I am simply a guy that was working, researching and looking to set up a reef and that thought I'd throw one in my tank to give it a try. I'm glad that I did as it has worked great for me.