Commercial hollow metal doors and frames are a lot cheaper than Home Depot's price, check your authorized dealer. He has them in stock and sells them daily. Installation isn't that hard.
It is very much a case that if you armor up the door, then all you are doing is having an ingress point moved to the next most easy point. Since residential stick construction is lame from a hurricane/tornado point of view, it's easier to get thru a window or even the wall quicker. Sheet metal buildings put together with exposed screws even easier.
All it takes is a little knowledge of the construction trade and you'll be able to see how easy. Don't put all your eggs in the basket of a strongly reinforced door frame - simply because a battery powered reciprocating saw can take it out. Literally. It's only attached at the sill and what few studs connect the header to the house wall.
If you reinforce the studs into the next ones, things can get a lot stronger and tougher to take out. Which goes to third world construction - which is predominantly masonry in those societies which have frequent wars.
It is very much a case that if you armor up the door, then all you are doing is having an ingress point moved to the next most easy point. Since residential stick construction is lame from a hurricane/tornado point of view, it's easier to get thru a window or even the wall quicker. Sheet metal buildings put together with exposed screws even easier.
All it takes is a little knowledge of the construction trade and you'll be able to see how easy. Don't put all your eggs in the basket of a strongly reinforced door frame - simply because a battery powered reciprocating saw can take it out. Literally. It's only attached at the sill and what few studs connect the header to the house wall.
If you reinforce the studs into the next ones, things can get a lot stronger and tougher to take out. Which goes to third world construction - which is predominantly masonry in those societies which have frequent wars.