I'm sure there are very rare exceptions, but if it's a simple product and it only takes 2 weeks to build it, it probably won't add that much value. If it does,

I'm sure there are very rare exceptions, but if it's a simple product and it only takes 2 weeks to build it, it probably won't add that much value. If it does, the market is, or will be, saturated with competitors due to the low barrier to entry.