A lot of marketers have produced or acquired products that they
believed would sell well and, in their enthusiasm, established
everything from sales letters to sites to getting traffic. But, a lot of
these marketers have forgotten the single most crucial factor that will
impact their product sales - the "salability" of the product.
Once you start creating products or purchasing rights to a particular
product to sell, the most crucial factor you must take into account is
the demand of the product.
