cutomers will complain about everything. they will look at your incoice and compare prices. example all we install is commerical grade devices and one of our customers asked why we charged them 4.75 for a light switch when he could of gotten one at the local home center for .48 cents aren't we a little pricy. when we explained to him that these are a different grade and brand he questioned us and hasn't called us back since we won't use the cheaper crap that won't last. This sucks because we thought we had alot of work lined up with him and now it appers we don't but oh well atleast we are standing b y our company policy of only using commerical grade devices in everything that we do