There is a wave or a trend which is about having some vintage collectibles for places like bars and restaurants. These might need things like vending machines in Denver and while some new things are still made, the preference is for those old stuff in good condition. Most of the things that change hands these days are older.
The older these are the better, which means that these are rare items that were once commercially available. The machines of course that really vend products are newer and more technically advanced these days. However, these are for those places which are more pedestrian or simply needed for commercial purposes.
The machines may be ones that are manufactured by established companies. Some are made for specific corporations for vending their products, like coffee or soft drinks, candy and other stuff. There are also those units that are bought by establishments so that their occupants or constituents can have access to the products vended.
Some are big and some are medium sized, and there is really no premium on a small unit. This is because it is better to vend all sorts of items through one machine than have lots of small machines in one place. Except in places where there might be concessions being run, smaller machines are not usually found.
Those places which need these can be varied. Companies of course will have these in their cafeterias, and so can be local diners or eateries. They might be located inside supermarkets or grocery stores, and there is a gee whiz factor involved, because the automation can be something that many like to have.
The less need for human transactions here is something that is relevant. Folks may simply drop in the coins and have anything they want or choose from a selection of items. These are usually the most preferred or popular of products and buying them one piece at a time at a store will take too much time and effort.
Thus the automated units are put in where there will be need or demand for the same items. The range is virtually for all sorts of things you can eat, drink, use orally and the like. Anything can be vended through any unit and manufacturers can answer any need for this in any way or in any place.
All that is really needed is that the sizes and shapes are matched. For instance, the dispenser could be one for mints or candy, and usually the largest size needs to be accommodated through the chute. This chute needs to normally be free from obstruction and the mechanics are made simpler to make operations neater and more efficient.
The coins used are usually of any denomination. Some of the counters for money are complex or often complex enough to admit or take in bills and produce change. Many of the more advanced ones are computerized, and there might be nostalgia for the time when dimes or quarters could buy most of the stuff, but machines today feature all kinds of products of all prices.