John and Mary, both 65 and retired, own their large family home outright, which is valued at $800,000. Their combined pensions cover their essential living expenses, but they wish to have more disposable income for travel and hobbies. They are considering selling their home and moving to a smaller condominium valued at $400,000. However, they are hesitant because they have lived in their home for 40 years and are very attached to their neighborhood and friends. Additionally, they estimate that selling their home and moving will incur about $50,000 in transaction costs. Based on this scenario, evaluate their plan to downsize. In your evaluation, you must weigh the primary financial benefit against at least two significant non-financial drawbacks and provide a justified conclusion.