there might be 1 or 2 at first photo, but they're probably 'paramount' which means pretty expensive for what they are... honestly, i'd buy a crapton at $1 each and just wait for 'em to go bad. well... i'd probably buy a few to make sure they're at least fairly reliable... THEN a crapton.
and it starts .... the collection of stuff that's needed or might be needed for your photography. I got to warn you, it's a never ending cycle. Pretty soon you'll have 3 or 4 extra sync cords, a couple extra lens', a spare body for backup, an extra set of lights for that "just in case" moment.
Have you seen the picture of my photo trailer on my website? Extra this, spare that. Remember, just don't spend more than you make... Good Luck!
I was going to try using sync cords from the V2s to the Sb-20 flashes I have. Since they won't fire anymore with the V2s. The test button on them works and the V2s work on other flashes I have so they're not the problem. I guess I'll find out.