if you're planning to spend $ on the carpet (surface layer), then you should plan to spend $$ on the under layer. a good under layer will let your carpet last a lot longer. when you walk on carpet with good under layer, you'll feel a lot more comfortable too. % M) X2 ?) N! @( n 8 y/ ]% E1 ?. F6 f# {8 ?' o uof course, this all depend on how long you plan to live in this house too.: X# A$ w2 N+ Z+ |% ~+ r( r