Seems like all features that would be desired by a tropical plant grower are covered. The major issue as other have noted is size. The largest option 20" x 12" x 19" should be the smallest option available.
I would offer two sizes and really create a nice presentation for those two sizes. Some of the digital renderings of the prototypes are really nice, so that looks like the path the product is going. So 2 options would be best call smaller one OrchidBox and the larger size NepenthesBox and adjust the kit includes with those to cater towards each genus. Price point is going to have to be $600 or less, doubt anyone on this forum would spend that amount.
There should also be an a la carte option to build your own setup and have the customers supply the terrarium to cut down on costs for both sides. The company can offer kits that fit terrariums in certain ranges. The core build-your-own kit would come with the main component/brain for the system and the sensors, and then the customer could add lighting, watering system, fans, LED, etc.
On the marketing side, there should be case studies on the site, I see that start of some of that already. Proven cultivation of plants in the genus that are difficult and require extra attention. Could even give growers in the community full kits for half-price and ask them to give you feedback and a possible testimonial and pictured for the site.
@Nem, I am thinking you are being facetious with your comment, the WiFi option is remarkable. The OrchidBox connects to the WiFi in ones home or office, and then all the parameters of the system can be access via the iOS App and/or Mobile Site. You would be able to control and monitor your system remotely. I have explored this possibility and built solutions to this a few time, this is a great offering, but might be ahead of its time in a way.
I have also done the web cam route a few times with grow setups, and i can agree, that it is a little unnecessarily. The only purpose it served was to ensure that the environment was running properly, misting, humidifier coming on, and helped me prevent a flood for a mister breaking.
One final note is I do not see a way to control humidity, well I am sure there is a parameter for humidity, but it probably turns on the misting system. This is not a good way to control humidity. Plants will likely root out and if they are constantly being misted to raise the humidity. Obviously there is a full system working in unison here, so this may work fine.
Send me a message Nate if you want to discuss further...