Hey James, glad you liked the story. I have no idea how much fingerboards go for these days. But you don’t have to buy one as you can make your own. Do an Online search for homemade fingerboard, etc. Check this out:
http://sportales.com/sports/how-to-make-a-fingerboard-or-hangboard-for-forearm-stength-training/
That approach requires some fancy tools. Another approach is to just buy a hard wood backing plate and upon it you bolt with a countersink different sized blocks of wood from which you can get a good grip, down to only 2 links of fingers, down to one link. Then you attach that board wherever and however you like. If you don’t mind spending a little more, then you can go to a climbing/bouldering website and buy just a few holds the size you want and attach them to whatever you like.
I think that this sort of training can be an important adjunct to lifters who are into finger lifts and grip strength and want to change things up a bit. It’ll certainly add to the overall development of hand and finger strength. But it’s also kinda like comparing a pullup to a pulldown; similar but not the same.
-d