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. 5 B) ]& A& O; B( u- j$ \+ W* Q : @$ v( X# c% A( ~5 F6 vof course, this all depend on how long you plan to live in this house too.: c6 `' g/ y! B- O$ [