I have two RPI 1's lying around. They are still great little machines. I personally would rather buy off the shelve NAS in stead of another RPI. But then I probably won't get OMV working and have 2TB hard drive collecting dust. I live in South Africa, $35 is too much as our exchange rate has effectively made the Raspi 3 times more expensive than when I first bought mine.
The SD I use cost about as much as I initially paid for my RPi, and it's quite new. Anyway, I think the miniDLNA issue was related to mySQL. After removing both and re-installing miniDLNA, it worked. I add mySQL back again, and gone is miniDLNA.
Its for you to decide if you want to check a bug. I am steering clear of mySQL now.
Once again thank you so much for a great system. I really enjoy OMV enough to stick with it. I will try out new things, and revert if I break it. It's after all just a "WinDiskImager" away from fixing!