Not arguing with ya Brew, but I'd rather pay myself the $30 an hour! As for guarantees, it's all about fine print which in this case is:
"C2 Development warrants to the original purchaser only that the AquaIllumination Lighting Product will be free from defects in material and workmanship under normal use for a period of thirty (30) days from the date of purchase of either one (1) year from the date of purchase – if the product is properly registered through the registration process below provided that the product is installed and used properly and consistent with the product manual... ...C2 Development’s warranty shall not apply: (i) to any damaged AquaIllumination Lighting Product that has been subjected to accident, misuse, neglect, alteration, acts of God, improper handling, improper transport, improper storage, improper use or application, improper installation, improper testing or unauthorized repair, operation outside recommended parameters (as described in the applicable product manual, for example, damage from saltwater spray or heat), power fluctuation or failure, subjection to abnormal physical or electrical stress, use of incompatible products, non-approved power supplies/connections, or similar circumstances (ii) to any AquaIllumination Lighting Product where product been exposed to water or (iii) to cosmetic problems or defects that result from normal wear and tear under ordinary use, and do not affect the performance or use of the product."</em>
I'm not saying that AI has had or will have issues but these are limited lifetime warranty and will ultimately end up costing you 'something' if there is an issue.
Fixing a DIY is inherently easier since you can pretty much replace any component on your own for the cost of the individual component.
As to the "apples to apples" I was able to get the specific manufacturer's component list of the AI Sol and price out the individual parts. The LED's are exactly the same. The reflector quality and angle of reflection are the same. The power supply and wiring are based on electrical engineering so no issues with performance.
In the end you are correct that there is a risk involved with DIY on any project. The thing I hope people realize right now is that the margin companies like AI are making is obscene. Don't get me wrong. If I were in their position I'd be doing the same thing. That's capitalism. Provide a product at the price the market will bear which is normally dictated by availability and public knowledge...
In the end you need to do what makes you feel the most comfortable and satisfied with your purchase. I for one, am not skilled enough to build a controller so I pay the premium to buy a name brand one. Just don't assume that because someone else made it you are better off.