(You could argue Brilliant Stars is the more over-all valuable set, given the number of over $20 cards in there, but even its alt-art Charizard V doesnt quite scrape the $200 mark.) These are, of course, their ungraded prices, with numbers vastly increased if sent of to companies like PSA to receive a grade, especially if they can achieve that all-conquering PSA 10
Like most Pokmon cards, the value of Machop depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Power Keepers)
The ratio of border to center of the card can determine how high the card is graded
A BGS 10 graded of this card sold for $55,650 at eBay auction in August
The truth of the matter, though, is that while we certainly are a combo deck, and that combo was the basis of this entire strategy, more often than not it's played for value while we get in with Francisco for lethal
You can swap in Sol Ring if you have to, but I like having a deck or two without it