I don't think people moved around in the past the way that they do, now - unless they were invading and taking over altogether, which obviously did happen from time to time, I don't think the wealthy and powerful would have been permitted to come into the country and buy up what they wanted in a totally free market, as it would have been treading too much on the toes of the existing elite. Today's global elite find it much easier to come in, mess up and move on without risk or consequence than previous elites, which were somewhat tied to their home country and eventually had to face up to their mistakes (eg WW1).
There has also never been quite such a large population of people to cater for whilst resources continue to dwindle, and we have not had quite such a shortage of housing for quite some time and when we did (I presume there was quite a serious shortage in some parts, eg, after the WW2 bombing raids), houses were not so expensive.
Also, people hadn't built up quite such high expectations in the past - now most people have tasted the joys of central heating, for example, they won't happily go back to the days when dying of hypothermia was something an awful lot of the elderly, frail and poor did every winter. Nor will they happily go back to the days when if you were poor and couldn't afford to see a doctor or get essential medicine, you would probably die. And if its suggested that they just ought to get used to the idea, because people lived like that in the past, they won't take kindly to it.