Comment by dsacco

Seconded. I have a reverse engineering practice with my consultancy. Investing ~$5000 into IDA tooling has returned over $100k for me this year. Granted, it helps that this investment is tax deductible for me.

People who say that IDA Pro is expensive are not HexRays' primary market, or they have not been professionally reversing software for very long. The product is just phenomenally cheap from a value-added perspective. Open source alternatives are pretty good, and if you're focusing on iOS applications Hopper is nice, but for a one-stop shop on all platforms with excellent support and superlative features, IDA easily kills the competition.

My reverse engineering practice routinely returns more than my AppSec practice on fewer engagements. That's also just for reverse engineering, not for specialties involving reverse engineering (such as blackbox cryptanalysis, malware analysis, blackbox binary auditing, exploit development, etc).