Analog fpv drone is at least €150 when produced on a mass scale. Parts alone.
This is nowhere near 35 bucks cheap.
But those FPV drones have to be reusable. A kamikaze drone only needs to last long enough to get to the target. Motors, batteries, etc don’t need to have long lifetimes. Think about how cheap the battery can be if it doesn’t need to be rechargeable. If the motor needs at most 5 hours of runtime?
Even if they have a 10% spontaneous failure rate of they’re 30% the price it’d still be worth it.
It won’t make much of a difference. They put rechargeable batteries in disposable vapes because it isn’t worth it to manufacture non-rechargeable batteries, even though the batteries would be technically cheaper, the specialized manufacturing process would be more expensive.