Ok, well I'm not going to make any snide remarks about complaining about a new release.
I will say that although the new Mini is nice, it is really not that much of an upgrade. The integrated video card is the biggest deal, but in the grand scheme of things still not really huge. I'm thinking the next Mini, if it gets updated, will be a considerable upgrade - but only time will tell.
I can understand the feeling of buying something towards the end of its production, and being surprised by a new release. Really, I do understand. But also consider that there are just as many people here who are glad that they purchased their Mini only a few weeks ago. They paid $100 less, and can upgrade (or replace in the case of failure) their hard drive - where I'm not sure if you can do that on the new one. The processor upgrade on the new version, will be undetectable by an end user in comparison to the processor you have.
I'm kind of bummed about the $100 price increase. If you are looking at price points between products, $599 for a 2GB RAM machine without keyboard, mouse and monitor is more appealing than the same situation at $699. If I get a Mini, its going to be the Mini Server. I just can't see the value in ordering the base Mini right now. If the hard drives are impossible to get at, though, it might be a deal breaker for me - and I just might be shopping for the same Mini that you are calling obsolete.
Your Mini is a great machine, and when it is really considered obsolete and unusable, so will this latest version.
Relax and enjoy your new Mini