Yeah, I'd say all those graves at Normandy make the point.

I'd love to have a finger brake. Maybe one of these days my ship will come in... nahhh.
Finger brake:

Regular sheet metal brake:
Sometimes a megabux tool is not needed, only some ingenuity. When I had to bend a long piece of aluminum (~34") to make a spoiler for the Abomination, I used the edge of my workbench as one part of a brake. I then clamped a long piece of angle steel down and used a deadblow hammer, working my way up and down the length a little at a time. I then clamped the angle steel to the bench edge, laid the short side of my workpiece on the angle steel and again used the deadblow, this time to straighten it out. I then used a sanding block and some 60 grit paper to even the edge out, followed by some 150. Looks great, didn't have to buy an expensive brake.