Hi Kiropa: I'm not sure you have to purchase a Vitamix: they are a bit on the expensive side. I bought one last year because I'd wanted one for about 20 years and the timing was right. I love it and can make raw soup in a jiffy. I like making my own peanut butter too. My blender is slower-going than the vitamix and the vitamix has a lot more power so it takes less time to grind things like nuts and seeds. But honestly, I don't think you NEED it.
The dehydrator (I have an old one that doesn't have a temp gauge) is probably beneficial because of the low heat and probably low on the electric bill too. I think leaving the oven on for 12 hours would bother me $$. The onion bread recipe posted in the *After the cleanse* thread is amazing and I'll probably make it once a week from here on out. Also the idea of dehydrating veggies and using them as "chips" for dipping or just for the crunch is appealing to me and I couldn't do it without a dehydrator. I'm all for finding the least expensive ways to do things so pick and choose what really "calls" to you.
I hope this helps.