While I do not want to start a thread bashing dog box companies I would like to know what company you like and why. I'm in the market for a box and while I've narrowed the search down to a couple of companies I'll have to order it and will not be able to visit the company and see exactly what I'm getting. If you have any comments on the various options, storage, fans, insulation etc I'd appreciate that too. Once again is a certain option(s) worth the extra expense as it works well etc.
Now I tell you that I'm planning on a single box and I have seen other posts where folks say go for a double box so you'll have it for your "second dog". I don't see a second dog in my future so I'll save that money for some other dog training equipment.
Lastly let me give you my minimum requirements as one company could excell in a particular area. Must be able to handle 90+ degree heat, low maintenance, handle a labrador that I expect end up in the 80 pound range and it will be used in an open bed pick up truck.