Well, some might have noticed that I got an Ask Slashdot through on the front page. Nice, but really, for some commenters you really need tough skin. Some of the commenters really think you're a complete idiot for just asking something because you don't have the experience and just want to tap into the pool of knowledge present here.
Sure, I could have a bit more precise, that I have a European style house and not the masses of space many in the US have, I also should have specified why I wanted a rackmount at home: basically, neatness and centralizedness (is that even a word?) because tell me what you want: a neat rack has higher WAF than a couple of desktops scattered around the house.
Oddly enough, I'm not sure I found a good answer. Best suggestion was this. I'll try to see whether my electrician can get a full rack, but if he can't, it will be this. Given my geographical location, using eBay for these things is impossible and people selling these new don't seem to want to bother with non-company entities (aka "real people"). So, starting off with the mounted one, extending to an on-roll half rack for future extensions seems a good compromise.