Gengar-EX (Phantom Forces) value

The catalog shows a few different values for Gengar-EX (Phantom Forces) depending on the specific version or condition. The most expensive listing is for the standard Gengar-EX (Phantom Forces) at $749.53 used, while there are also options listed at $90.28 used, $423.86 used for the M Gengar-EX, and $170.65 used for the M Gengar-EX as well. To give you the most accurate advice, could you tell me if you are looking at a specific version, like the standard or the "M" version, or if you know the card's condition (e.g., Near Mint, Lightly Played)?