I would not buy a $1.50 song on such a site. Here's why:
$1.50 is not worth the scale of mental investment required. I'm not going to give my credit card info to a site that I'm only going to use once. I'm not going to give my info to a site I don't trust. I will buy my music from the places I am already invested in.
And it is an investment: it takes time, attention, trust, and memory to use a website. The cost of that song is not $1.50 to me. (If it were, I would have no trouble paying it. I think that's a perfect price for a song.) The cost is an arbitrarily long commitment to managing the risk involved with using the site.
Which is only worthwhile when I know I will come back regularly. When I can say "I plan on buying a new song every other day, and that I'm ok with spending hundreds on music from this one site." Or when I can justify a larger purchase that is exclusive to the site.
$1.50 is not worth the scale of mental investment required. I'm not going to give my credit card info to a site that I'm only going to use once. I'm not going to give my info to a site I don't trust. I will buy my music from the places I am already invested in.
And it is an investment: it takes time, attention, trust, and memory to use a website. The cost of that song is not $1.50 to me. (If it were, I would have no trouble paying it. I think that's a perfect price for a song.) The cost is an arbitrarily long commitment to managing the risk involved with using the site.
Which is only worthwhile when I know I will come back regularly. When I can say "I plan on buying a new song every other day, and that I'm ok with spending hundreds on music from this one site." Or when I can justify a larger purchase that is exclusive to the site.