Well, your right. I was actually going to preface my comment yesterday by mentioning prices going up in the last few years (but I kind of left that out). The gist of my comment though was that people can definately get it for under $1 sq. ft. if a person was so inclined and was going to buy more than a few token pieces, as opposed to buying it from the web sites catering to home hobbyist recording studio builders where they charge you anywhere from $1.25 upwards of $4.00 sq. ft. for 703.
Yeah, I've actually run across a site that was charging $4.00 a foot for 703 (not even 705)... which is just plain taking advantage of people.