Conventional wisdom as all the others have said is to pay off your home first. That is always the safe choice, pay off your debt, own your home free and clear, but consider if hyper inflation or even severe normal inflation 10-20% a year comes. The debt you owe on your home is fixed in dollars that will progressively become worth less. If you invest your extra money now in inflation-proof or inflation benefited investments you will be better off in the long run. In a normal economy the longer you wait to pay your house off the more it costs you. In a high inflation economy the longer you wait to pay it off the less it costs you.
I lived through the Carter years.
I saw what inflation can do.
I believe Turbo Tax Tim, Helicopter Ben, and Baraq are gonna make inflation happen somehow.
So my financial bets are on inflation.
You are the only poster so far that understands the issue.
In many locations, house values will rise. The inflation of the house value and the devaluation of the dollar will both earn you money. The devaluations touted in the press are not universal
As a further incentive, if you invest properly, you should take the amount required to pay the mortgage and earn a higher return that 4.75% and the rate of inflation.
It requires work and attention but is the way to go if you are financially literate.