Deal on acoustic foam ?

[Esperado]

i just found this guy on craigslist, and i was thinkin, for that price, it couldnt hurt to get me a little foam. i found a tut on how to make my own triangular bass traps ( that dont look half bad) so im good there. but i was curious if there was any way to get scammed on foam . i know some people will say foam itself is a scam, but really for me its more of an issue of is there such a thing as "fake foam" that doesnt do anything but look cool.

heres the ad

http://minneapolis.craigslist.org/hnp/msg/3734747247.html

[XPRTNovice ⚖️]

Last year, when my studio was above ground with a leaky window that let all sorts of ambient noise in, I actually covered myself with a memory-foam topper while playing. I would make like, a little kid blanket fort using the foam topper, using the mic stand as the tent pole. It made playing exceedingly uncomfortable, but it actually worked.