Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

Mortgage or not?
Here is something that should help your decision: Currently you are 57, suppose that means that you will still work for 10 years, and then be retired for another 20 before you sell the house. Your retirement account is nearly flat, so you will have to support yourself with your own income.  If there are no surprises, you and your wife could expect to earn 1.16 million over the  next 10 years. There will be interest on your savings, but also inflation, so to simplify I will ignore both. That means you will have an average of 40k (gross?) per year available to live from during the next 30 years. If you get a mortgage where you only pay nett 3% interest (no payback of the loan), that would cost you 6k per year on interest (based on 350k-150k), if you also want to pay back the 200k difference within 30 years, it would totally be close to 13k in annual interest+payback. Now consider whether you would rather live on 40k per year in your current place, or on a lower amount in a bigger place. Personally I would not choose to make a 200k investment at this point, perhaps after trying to live on a budget for a while. (This has the additional benefit that you can even build some cash reserve before buying anything.)