Great insight - what services do you use to watch your own & other sellers? Been meaning to write software in this space for a while. Feel free to dm me email is in profile.
There's dozens of tools for Amazon sellers and I think what they're missing is something that connects ALL the moving parts together as well as helps Amazon sellers expand outside the Amazon marketplace. Amazon software tends to be expensive.
Helium10's cheapest plan is $100/mo.
The software I use for inventory is $50/mo (Inventorylab),
a repricing software was $50/mo- now maybe $100/mo (Appeagle/InformedCo).
Feedback email software is $20-50+/mo (FeedbackGenius, ZonPages, etc).
Restocking software is $50-100+/mo (RestockPro).
Sourcing software is $50+/mo (Pricechecker 2, Tactical Arbitrage, etc).
I learned Python to automate some of my processes because I was spending thousands of dollars for my own tiny Amazon store with $100k+ annual sales. There's over 100,000 sellers on Amazon that do $100k+ annual sales as well hundreds of very big sellers ($10m+) that need custom software solutions. So it's a niche but interesting market.
It's a pretty exciting space. Amazon changes so often, every few months, making it difficult for small sellers and software providers to keep up. The best software last year is no longer the best software today.
Currently I see the biggest competition in Amazon PPC software companies: Teikametrics, Feedvisor. If anyone's interested in building software for Amazon- I'd love to connect.