![Laughing :lol:](./images/smilies/laughing.gif)
Both those threads are years old though, the second one is from 2010, and the prices then were around £500 for the dynavin.
There was uproar (and a very funny thread, which I will try and find) on the e46 uk forum because overnight TTints upped the price from £500 to £700 for no apparent reason. The units hadn't changed, it just cost £200 more to buy it. (and that was the old, old version of the Dynavin too)
IIRC you can get a Dynavin right now for £500-ish, but it's the old model which reportedly has quite a few problems.
EDIT - Here's the thread: (Note the reply from TTints)
http://www.e46zone.com/forum/index.php?showtopic=17300