If it's going down the road straight and not wearing the tires, then as the Beetles song says Let it Be. Save the green for your next adventure.
On the other hand, if it is going to be nagging at the back of your brain get it aligned. It is really your choice.
If you take it in, be advised when the tech puts it on the machine and its within tolerance even though they don't have to turn a wrench, they will still charge you the full Monty. (Back in the day I worked at a Dealership) Our local truck garage gets a buck and a half for an alignment, and I have heard of much higher.
And that is My Humble Opinion.