Armenia can't join NATO because Turkey will automatically block armenian membership; unless NATO kicks turkey.
When are they getting rid of the Russian bases?
Just looks like double dealing trying to extract as much concessions and support from either side. Basically saying to the Russians if you don't fight for me ill join the USA. But the reality is that if Armenia ever tried to bring American bases into Armenia, Russia would just invade it outright and it take it over. And who in the region will intervene to save them? Not Turkiye, not Iran, not Azerbaijan. Russians would concede Azeri regional concerns over Armenia to them as away to completely pacify Turkiye/Azerbaijan axis.
Armenians are playing a very dumb and dangerous game. To protect themselves from an outright Russian invasion they need Turkiye on their side, without it they cannot change their vassalage.
Desperate times from a state that fails to understand her own capabilities and worth.
This could also be a play from the americans to create pressure on Russia to make sure she intervenes on Armenias side against Azerbaijan. Because what we do know about the USA and Russia, when it comes to opposing Turkiye they work together.