[ObozoMustGo2012]

[I thought they still boarded passengers in groups ... although you could pay a fee and get to board early. That’s changed?]

Yes, they did board in groups. But at least when your group was called, you got to pick whatever was available.

I prefer the aisle seat so those were frequently available.

[oh8eleven]

But at least when your group was called, you got to pick whatever was available.
That's not the same as being able to pick your seat when you make your reservation.