Related: Amazon makes a harsh decision amid concerning customer trend That's not because we've lost the appetite for a good sale. Rather, it's because we just don't know if good sales really exist anymore.

I search for deals for a living and I've discovered the best space tech deals ahead of Fourth of July celebrations and Amazon Prime Day.

If you're looking for Amazon Prime Day deals, you'll need an Amazon Prime subscription. Using an Amazon Prime trial is a low-risk method for accessing the bargains while checking out the service's other benefits without being locked into something you may not be ready for.