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Do you think they use cheaper ingredients that week, or that they use different, cheaper waiters, etc.? Any business which would do something at a reduced rate, but purposely reduced it's service, etc. would be "an ass".
PS Skills are skills. If some woman offers blowjobs at a reduced rate (or an increased rate), it would be more difficult to alter her skill at it than to simply do what she does when she does it "naturally". As with all redueced rates, there's some tradeoff, but it's not in the "essence" of the items, it's in the periphery. For example: if some $250 an hour hooker went and gave BJs at ASSCon, what the "consumers" of the BJs would get is a more rushed session, in a less private environment, but not a change in the inherrent skill level of that BJ. Plus, it's also interesting to note, that at $80 for 15 minutes, she's actually getting $320 per hour of service, which
isn't less than her "normal" rates, so while the venue might be "Burger King", she's hardly able to claim that since the Johns are "only" paying $320 per hour, they aren't entitled to her most skilled BJ. It's the
venue which is Burger King, not the Lady (unless, of course, the Lady is Burger King to begin with). If you were buying a Kobe Beef burger at burger King, you'd still expect Kobe Beef, you just wouldn't be able to complain about the decor or service (i.e. that it wasn't up to the
places where you usually ate Kobe Beef Burgers).