Republican propiganda is evident in peoples opionions on the matter. Even those who really like the King dont want the monarchy's restoration beacuse they beleive he will cost them money. Of course a change in regime would be unneccesserily expensive, however the fact that Constantine wanted Tatoi and not compensation, the fact the comensation is being used for public good and that a Head of State has the same expenses in State function whether a King or a President in office (although Presidential Election costs would be eliminated) is neither generaly known or considered (as is the case under any monarchy).
I think there are other, more substantive reasons for not wanting restoration than simply government "propaganda" relating to cost. People are more intelligent than that=, and base these kinds of decisions on their experiences, freedoms, values, quality of life, etc.
After all, many of them had the misfortune to live under the monarchy. The bottom line is that Greece had a horrible run under the monarchy, and it is doing far better politically, economically, and socially without it. I think most Greeks realize this and thus it would be absurd for them to go back to a system of government that didn't work. In short, they're doing quite well with the system they have.
With respect to the whole compensation issue, he *was* actually seeking compensation (despite claims to the contrary), knowing full well that the properties would not be restored, since the Greek govt. refused to negotiate on the matter with him. His orignal claim was for 316 million British pounds, and it included compensation for the former royal palace, Mon Repos, Tatoi, and Polidendri and thousands of acres. However, he was only partly successful and was awarded only some 8 million British pounds.
The whole foundation thing is propaganda to boost his image and to make him look magnanimous. The fact of the matter is that he took the money from the Greeks (and he was willing to take a lot more), and that he's now 'helping them' with their own money in order to garner attention for himself and to divert attention from the fact that he unsuccessfully tried to take them for more $$$, as he knew fully that he wasn't going to be restored -- ever.
The 'people' would have been better served had the funds remained with the government or given to a welfare NGO within the country. Or if the the whole sorry lawsuit not taken place, or if Constantine had declared a 'moral victory', and had decided not to take a dime.
As far as the costs for a head of state being the same whether a President or King, I would argue that this is not entirely correct. Monarchies are more expensive than republics of the same or similar size.