Another consideration is market size. Many Kickstarter projects appear to a very wide audience. A scoreboard, on the other hand, need only be purchased once per venue. While the players would appreciate it, only the venue owner (school) is likely to buy and they're not well positioned to make impulsive investments in uncertain projects. They are also likely to seek a permanent installation rather than a lightweight portable unit which might get broken or taken.
Actually, market size on this is much larger than the venues alone. My niece has played softball since she was 8. Many of the places where she played had no affiliation with the team she was playing on. I can see this being marketed to teams or sports organizations, not venues. Being portable, a team or organization can invest in one or more and move it from event to event. Having attended many of my niece’s games where parents were constantly bugging the score keeper for the current score, this would have made a big difference.
I think in many cases there is an attraction to either a large group (say techies) or a real market for the product (low cost neat gadget). If a product has the "that is really cool I want one" factor it is more likely to be funded. Even good ideas may not get the attention and funding needed. I am sure that marketing and getting the word out is a big help.
Biggest problem with Kickstarter is they only accept PROJECT funding, No BUSINESS start-ups or funding. must have a start and ending result . Also the SEC has NOT completed the specifics on applying the JOBS Act and probably will not until some time in 2014 or 2015...so you cannot use any crowd funding to buy "Equity" in your company !!! I have tried "Indiegogo" But only artsy and humanitarian stuff gets funding from the readership...
I recently pulled out a kickstarter project after it had gathered only $1K of the $25K goal, with one week left to go. It was a univeral super-IO card for the Raspberry PI computer. Given the buzz around the PI, and the 1M units they sold, I expected a rush. I'm still not sure why it failed but one thing is certain: posting a project alone is not sufficient. It is up to you to draw attention to it. I posted notice to the most popular Raspberry PI forums and got some attention, but that was not enough to get traction. I will be reposting soon with lower funding target, new rewards, photos of a real prototype (was 3D rendering before). Wish me luck.