Cleanliness is absolutely mandatory if the optimum sonic capability of the vinyl medium is to be realized. A clean record will not only sound better, but last longer. It has been shown that repeated playing of soiled records can cause permanent damage to the vinyl. Preservation of valuable or irreplaceable records requires careful cleaning. Further, stylus wear is greatly accelerated by playing dirty records, and with cartridges costing what they do these days, playing soiled recordings can lead to significant and unneeded expense.