Because the number of potential customers for such experimental sensors is small, the firms manufacturing them have to charge a high price perunit just to cover the fixed costs of designing the product, setting up the factory, and so forth.
The way it might work is that the typical replicator will have patterns stored for common things, but the owners of something really special like Bass Ale will figure out a way to encrypt the structure so that they can charge you on a perunit basis.
The minister replied that a charge of up to 70p perunit could be imposed, and that the higher the price the greater the effect in combating the ill-effects of alcohol.
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