I love what you DIY guys have done, but remember, time is not free. The same goes for systems that (in order to access your aquarium info and get alerts) still require you to do things like port forwarding and email server setup. While these are not tough for the super-tech-person, they are basically a non-starter for the average aquarist.
Price comparisons are often very misleading. One must make sure they are making apples to apples comparisons. For instance, the ReefAngel was quoted above. Well, to get the hardware even close to the current Apex (sans power monitoring, four switch inputs, calibration fluids, etc.) you can see that it is already $141 more than the Apex ($799.95). True, you could get by with less, but that is why the Apex Classic is still out there at $550 and the Apex Jr. at $240.
Price comparisons are often very misleading. One must make sure they are making apples to apples comparisons. For instance, the ReefAngel was quoted above. Well, to get the hardware even close to the current Apex (sans power monitoring, four switch inputs, calibration fluids, etc.) you can see that it is already $141 more than the Apex ($799.95). True, you could get by with less, but that is why the Apex Classic is still out there at $550 and the Apex Jr. at $240.