I think Putin will eventually do something that will make this decision for us:
The NATO alliance will not pursue the establishment of permanent military bases in Poland, a top United States diplomat said Wednesday.
Then we'll regret not making the decision now. Because as long as the West refuses to believe Putin would take a shot at NATO while its defenses are weak, Putin will have vulnerable objectives dangled temptingly before him.
Could we at least deploy equipment in Poland to make it easier to reinforce the Poles and have a shot at fighting for the Baltic states?