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. 3 S- B7 O B. Q/ `1 H) k % ~) c6 K# t8 W* H0 _/ `. Iof course, this all depend on how long you plan to live in this house too. 7 d$ B" U) X# \; w( W' A