I'd be willing to bet that at the price these will be going for, new owners won't need much in the way of accessories or coffee. These aren't going to be 1st time buyers.
All I'd want is a machine that worked, a phone number for those times it didn't, and a personal visit from the guy who sold it to me, shortly after it's installed, just to make sure it's working the way it's supposed to work.
Loading it down with frou-frou might make me wonder if the seller thought the machine really wasn't worth the price, and was loading me up with stuff out of a feeling of guilt? Reputable companies offer worthwhile accessories at a reasonable cost, not throw them in for free.