Vаlerie is deciding whether tо remаin in the hоme she hаs lived in fоr the past ten years, which is located very near her work, or to move into a newer home that is located in the suburbs farther from her job. The old house was purchased for $160,000 and has a market value of $220,000. The new home can be purchased for $285,000. Which of the following is not relevant to Valerie's decision?