If I had to guess why, I would say it’s because of the amount of time required for thorough testing. Something like a connected air conditioner has to deal with a high number of variables:
- Air (can be dusty, polluted, humid, etc.)
- Variety of window frame formats (+ end user skill with installation)
- Variety of smartphone operating systems (+ end user skill with troubleshooting)
Not to mention that a connected air conditioner will contain electrical, mechanical + fluid systems…
On the other hand the cord management product really only requires a (somewhat) flat surface.
More variables means that for a product success, there needs to be a substantial time budget for making sure everything works when the scenario changes.
To see how companies creating best-of-breed products handle testing, look at the lengths General Electric and Festool go to, literally importing dirt from all over the world to make sure their products hold up as expected:
GE: http://www.wired.com/2015/06/ge-uses-sand-around-world-test-jet-engines/
Festool: http://www.core77.com/posts/37964/Core77-Visits-Festool-Part-6-Behind-the-Scenes-with-Their-Testing-n-Quality-Control
While this level of testing may seem out of reach for a typical startup, there are a couple of options that can get you a lot of the insights you need without tying up too much time or money.
Option 1:
Build a handful of units that are as fully solved as possible- this means the geometries are injection molding friendly, wall thicknesses are where you they need to be, you’re using the battery chemistry final products will ship with, etc.
3D printing won’t get you the material fidelity you need, so using rubber molds and getting cast urethane parts to accurately simulate injection molding resins is the best route. Ship these units to people that are excited about your project and are representative of what your end users will be. Bonus points for users in different climates, different ages, etc. these beta testers will go a long way to getting you the diversity of environmental and usage conditions you want. Don’t tell them to treat your product with any special care- if the product breaks, that’s where the learning will come from.
Option 2:
Work with a testing lab or one of the better hardware programs like Bolt VC that has the engineering + testing support to run the right torture tests on your product (see how Bolt portfolio company Qleek has been doing their due diligence on wood + composite performance in an environmental test chamber: http://qleek.me/read/2015/6/17/getting-qleeks)
As annoying and unglamorous as testing can be, it’s a huge differentiating factor over the long term and can make or break your company. Biting the bullet and spending time now will save you and your customers a lot of pain later on.