<prompt> Human: We did a house reno and I was worried that we were going to be eating some costs. Instead it appears that we may have increased the house by more than the reno costs a miracle that usually only happens on HGTVAnyway to make this quick:Original house cost: 142KReno costs 190KAppraisal: 340KInterest rate: 4.125Some personal financial background:The only debt we currently carry is the 40K remaining on the existing mortgageWife and I bring in 90K per year with some upside since I have just started my own data system businessWe have a 12 almost 13 year-old an 11 year old that will likely want to go to college some dayWe had approximately 45K in savings before the reno. We were misled into a bad loan type at the start of the construction process and so we have had to beg, borrow and steal to finance the construction to this point ourselves. So currently we have some IOUs that we will be able to pay off when the loan closes which should be very quickly now that the appraisal is in.MY MAIN QUESTIONS:1 Should we take the loan for the max amount 272,000 knowing that we can invest the rest and save for the kids college since there is a good chance that the 4.125 interest rate will look great in comparison to college loan ratesinterest rates moving forward? Or take the loan amount that will cover the reno and with a little left over for the rainy day fund? THANKS!!  <response>: There is no guarantee your investment returns would outpace the 4.125. Dont take on more debt than you need. 