Replying to fat skis getting overplayed

it wasnt long ago that the seth pistol was considered a very fat ski, but in recent years fat skis have become a fad and it seems almost every company is gunning for a ski with a waist wider than 110. i was checking out the new volkl skis and noticed that theyve added to there collection of very wide skis, now the have the sumo which has roughly the same dimensions as the line prophet. my question to you is why do we need skis this fat? can you imagine how heavy they probably are with their wood core. and would you ever buy a pair?
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k2 05 06