[quote=walterwhite]no it’s not, because $12,000 today is worth a lot less than 12,000 financed at 4 % for 30 years. Plus, I have the 12,000 right now. It’s difficult to pry it from my sweaty hands’ death grip. The 12,000 in the future is far more abstract[/quote]
Financing 12K @ 4% will cost you $20,624.26 over the life of the loan.
The amount in question is roughly equivalent to about 3/16% rate difference on your loan (assuming 500K loan range).
Rates move by 1/8 point randomly. Personally I would sacrifice 2% on price to have more control over my loan on 80% of the purchase price. Just my advice.