As someone who has just started working with the scroll saw, I can already tell you, pinless or a saw with an adapter is the way to go! I have done a few things so far and my machine only takes the pinned blades. Well, recently I was going to cut a trivet for my Better 9/10ths and could not complete it because some of the interior cuts were smaller than my blades could go through because of the pins. An adapter fixed that and, since my saw was only $15, the adapter cost was worth it.
But the wisdom that is from above is first pure, then peaceable, gentle, and easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy. James 3:17