Well I paid 800$ for my Monarches. Actually I paid 3.6 BTC for 4x but that was back in the 1000$ glory days...
I guess the Spoondoolies would be an alternative if:
1) They had customizable speed without going through their interface, which is hosted by them, they take the site down and your spoonies are turned into crap (potentially?) if they are hardcoded in firmware to connect to "the cloud".
2) If they had USB. I need to connect to my 4g router with antenna in the attic, and the house is 200 years old so: no drilling (because it would be rude) = wifi.
I could add photos but they are just monarches with fans replaced with variable speed Nonctua connected to Corsair AX760/860 PSUs.
What I think you (and all other non heating miners) don't appreciate is: monarches have liquid cooling. If you compare the GH/db with Spoondolies they are worth the extra dough, easy!
1. It isn't the "interface" is on the machine itself not hosted by them
2. It has USB and supports Wifi (experimental at the moment), or you could use a cheap lan to wifi converter