Well I for one would love to see the management/itemizing of the bots to be a part of the offlne experiment.
What else would I do with all the stuff I find

As for the manaregen rate. Sure its a bit too easy now. But then again it shouldnt be boring either. Need to tune it. Lets try low for a patch and see...
Spawning as in combat is too a bit easy. Sounds fair to have it removed/unavailable as you are engaged (witha DE female at least

)
Spawning same bot isnt realy a problem if you choose not to have them gear dependant. But IF you do. Then suddenly they can become too powerful in masses if you get your hands on some uber gear for a specific type of character...
I vote for not being able to spawn same bot over and over again. ut in the same time. Needing 40 or so bots equipped for a major raid just seems stupid... Maybe raids could limit it to 3 or so per botnpc?