Just in case anyone is considering adding some additional cameras, Insteon is dumping the older standard definition (640 x 480) IP Camera for $20 plus $6 shipping.
The 75790WH has Ethernet and Wi-Fi (regular, not the newer 802.11ac), motorized remote pan, tilt, zoom (PTZ), and infra-red with an automatic light sensor.
It is still selling on their own website and Amazon for over $50.
Be aware that Insteon no longer provides any manufacturer support for this product. It does work directly with the Insteon Hub (the non-HomeKit hub that works with Alexa), and does not work with newer HomeKit Hub Pro (which is also a really bad hub).
The camera is actually made by Foscam, so standard Foscam drivers will work.
I was able to easily integrate it into SecuritySpy using the Foscam MJPEG profile.
The camera does NOT support ONVIF, and does not have built-in hardware H.264 support and does not support RTP protocol, so be aware of those performance and software integration limitations.
They do have a basic embedded web browser, so you can play with them without any special software drivers or configuration, but you MUST configure it first with a hard wired Ethernet connection (to at least set the Wi-Fi parameters) because they do not have the new-style "virtual Wi-Fi AP" or a bluetooth link that many new products use for easier initial setup. The embedded web server does have the usual IP camera FTP upload-type options, but I've never bothered to use any of those as I use SecuritySpy servers.
There are mixed reviews on these cameras on the 'net, but most people are reasonably happy with them for what they are.
I wouldn't advise using them for critical use, but at this price they are fun to play with. I have one in my garage aimed at the garage doors, For ~$26, I now have a "visual garage door status indicator" that can confirm if the doors are open or closed.
I just ordered another one to put near my laser printer which is upstairs and far away from my primary home workspace. I will aim it at the paper trays so I can see if the paper is jammed or stuck without having to trek across the house and up the stairs. (Yeah, a "first world" problem, but for the price of a cheap lunch, why not?)
Oops - almost forgot: They are being sold on http://www.houzz.com which is a reviews/ecomerce site that is a cross between yelp for home remodels/decorating and amazon stores.