I have business visitors who stay at the local Hampton Inn, open about 2 years. I often have breakfast with them, a free continental is included in their rate, I asked at the desk how I could pay for mine, they said don't bother paying, join them. About 6 months ago they started charging $4.00 for non guests which is fine by me, they have a good selection biscuits, fresh fruit, muffins, cereal, juice, yougurt, etc etc. well worth the $4.00 . I would not be a bit surprised to hear that non guests go in and help themselves and probably bing a to go box with them.
Steve W