I personally favor just the machine and pods. A frother requires cleanup every time it used I’m sure that will happen.
One place we worked we just had Bunn drip maker, but used the pre-measured coffee that were in filer bags. Toss it in, hit start, toss it in trash when done. No mess easy to do. Isn’t all the fancy types of coffee but at 25 cents per 12 oz was bargain. That paid for sugar and creamer.
IMO whatever is gotten is has to be very simple to clean and maintain or it’ll be problem in days. That is one of the main advantages of Kruerig type machines.