if one day, we were eventually able to create a matter replication device, what would the impact of this device be on the price of goods, would it decrease the price by removing scarcity or would it create a separate niche market for "pure" food much like today's niche market for organic food, also, what would it do to the gas crisis?

I suspect the price of commodities would drop to zero, much like the utopian currency free world depicted in Star Trek The Next Generation with their replicator technology. If everyone has a replicator, then nobody lives in want.

Just look at the music industry. The easy and virtual replication of music has destroyed it.

 

.