I found your opinion very interesting and even if I don't spend that much time here I try to listen to the people's opinion.
I'd love to design a very cheap unit but as convolution is involved, you need a lot of CPU power to achieve low latency. And converters and the electronic parts around.
The PDI06 is far from a TORPEDO Live, it's a simple attenuator with no line out. No way you can record or send your signal to a PA with that. So you'll need a microphone, mic preamp and a converter if you have to go digital. Prices can jump way above a simple cabinet.
So I don't think the TORPEDO as a cabinet replacement ONLY.
The TORPEDO products are a life savior for everyone playing in places where the sound has to be controlled (venue, radio show, TV show, home, studio in live recording...), and everyone who tried analog loadbox then our product know that there is a huge difference that worth the price.
For private use, at home, it's a matter of choice and where you want to put the money. The recording gear is not cheap if you want to compete with what's in the TORPEDO.
Maybe it's not something easy to hear on a sample but dynamics and great tone are easy to feel when you play with a machine.