KS may be a way to get something at a good price, but it's not what it's made for. KS is made to help someone get started with a project. Mostly do the "first batch" to lower the cost or ordering the first batch of stuff.

Normally, they should lower the margin by a LOT (almost to the cost of the item) to get a lot of people and having a really big "first" order. Then you can open an account with a supplier having a really low price (Most supplier do different "cost" price, depending on your first order and annual order). When it's done, you can sell the product you made at the price it should be, with the low price you have for the part... this is were you make money (not with the KS!). Many business does understand that. You may see some very small shop selling stuff at very low price and the other bigger shop will say "It's under my cost price... I can't do it !". This may only caused by the fact that the little shop do "special sales" at his own cost price (no profit) so he can have a lower cost price and sell the item at the same retail price later and do more money per sales (plus the ads that does).

You can also see (like the Peachy) someone who need money to continue R&D. It's like investing in a project. You don't know if they will have a success or not... but you trust them, think they can do it, so you help them.

If you are going to KS just to get stuff at a low price, your looking at the wrong place (even if it's mostly the case).