Sure you can physically move the gate. The intergalactic gate bridge proves that in spades. But there's more to it than just the gate. It's also all the supporting hardware. Without a DHD you need so much hardware to make it work. Then there's all the security issues. Being inside a mountain is a huge plus when it comes to safety. Not just from a foothold situation, but also when being connected to a black hole for example. And having a failsafe device is also something easier done inside a mountain. You can destroy the entire base without basically setting off a nuke without warning in the mainland US. Possibly even destroy the base without anybody on the outside knowing about it, or with the option to say it's an accidental collapse. Then there's moving all the personnel, who are all stationed at that base. With other programs like NORAD being stationed there, it's easy to hide what you are doing. This is much harder on other sites, especially to cover up the huge energy hookup needed to establish the wormhole before it can draw power from the other side.
Bottom line it would cost probably a billion dollars or even more. That's if a good enough site already exists, otherwise it would cost way more. And in the end be worse off in every possible way. Yeah no, you are right, that sounds exactly like a Trump move.
Tell me Legolas, what do your elven eyes see?
Fucking pixels Aragorn, it makes me want to puke. And what the fuck is up with these compression artifacts? What tier of Netflix do you have?
Sorry Legolas, could we just enjoy the movie?
Maybe if the dwarf stops stinking up the place. And don't think I didn't see him take that last chicken wing, fucking dwarves.