18 fucking seasons? I guess if the guys at the pawn shop want to keep it up, why not?

I don't really consider low-balling to be duping in the first place.
I don't really watch the show much, so I can't say how things have changes over time. Do they even still make new episodes?

Usually they explain things pretty clearly from what I remember, but knowing what you're doing is your responsibility anyway. If you make a deal without any info about what you're selling you should expect that you might draw the short stick on that deal.

Of course they give low-ball offers, its a pawn shop, they make money by turning a profit on selling things they buy or things that are unredeemed by people. It would be pointless to buy anything for a price equal to or greater than what they could turn around and sell it for.
Also, even if you could account for all those variables it still wouldn't be an objective value because, again, different people value things differently.

I've built three gaming PCs that were all pretty good for the time I built them, so I know how well they perform in comparison to, for instance, my Xbox One, and the one I built that out performed it to an extent was significantly more expensive than the $600CDN I paid for the console.
Maybe I just suck at buying parts, but a case, motherboard, cooler, cpu, power supply, gpu and maybe OS is generally going to run me a fair bit more that 600 dollary-doos.

Value is subjective, mate. Things are worth different amounts to different people.
I don't watch a lot of Pawn Stars, but from what I've seen their offers are almost always phrased as something along the lines of "I won't pay more than x" or "I can't buy it for that price". It's about the money they're willing pay for it, not the objective appraisal of value that their experts (maybe that word should be in quotations) give, which is usually disclosed to the seller anyway.

Pretty sure a scam requires some sort of dishonesty.

I like the way this comment string went.
I want to clarify that by "stick to it", I meant that you need to actually follow the guide and keep following the guide, its not enough to just think about it or talk about it. Its also okay to slip up from time to time, its more important to make following the guide a habit than to attempt to stick to it absolutely.
Also the guide definitely should change over time as you learn new things from new experiences, including learning about the faults in the guide as it currently exists, which it will inevitably have because no such guide is perfect.

Living is pain.

Second season starts in April.

Seems like that pride would be for civilization in general, but I guess.

Even I don't know how I did it.