Gentlefolk:
I supported a few (4?) KS's. I helped run one, recently. The majority of the KS offerings are for luxory items. I helped run a KS for Dice Towers -- not necessary for gaming, but very nice to have at the table, for various reasons. Were they inexpensive? Hardly! The lowest offering was $50 USD + shipping, solid Oak Tower and Tray.
We had no history, no reputation, on the Internet, or KickStarter. For that reason, we built all of our domestic wood products ahead of the KS, to assuage buyer's fears. We did not sell all of our products, but we knew we could offer them later, on a web catalog, as well as retail outlets, so no issues there. Our exotic wood products we waited to build, so we did not have a lot of money tied up in inventory, which might take longer to sell, due to their higher prices.
We aimed for, and marketed to, the higher end. We offer custom hardwood gaming tables, for RPG'ers, and miniatures gamers. Are they inexpensive?… LOL!!! NO, they are not! They are high-end, luxory items, custom built to the customer's specifications. The KS helped us establish a web presence, and a reputation of delivering higher end products, on time.
Most of the KS sellers are aiming for a niche market, within a niche market. If you are not within their niche within a niche, no problem.
I would, however, recommend you look at the 3D terrain KS's history of Dwarven Forge, for example, to see what the potential for the gamer niche market is. His 3D terrain KS's have all bested $1 USDM, each. I am not in DF's niche within a niche, but I admire his success. Take a look at the successes of Reaper Miniatures Company, with their Bones KS's. The gamer market is HUGE. People are clamoring for a piece of the action, some offering good products and services, some not. It's a fun time to be a gamer, though! Cheers!