The difference here is that monarchists don't think of the monarchy's financial burden on society, (which is laughably small compared to the splendiferous waste of money and time Legislatures use tax payer's money on to begin with), but also of the splendour and magnificence the Monarchy represents, the sheer majesty and pageantry all symbolic of the nation's own power and prestige, they are living symbols of the Nation itself, history and its future. They are living culture, and this is true wealth of nations, where even the most financially insecure nation can stand proud amidst her neighbours. Look to Tonga, who's relatively recently crowned King was criticised for the lavish coronation ceremonies and celebrations, but who's splendour and wealth was spent so that the whole country could enjoy the momentous occasion.
But then again we cant really expect republicans and their ilk to respect this, because they do not value this aspect of humanity, (just look to the secularisation of culture here in the west, lovely, isnt it?) this is a rant I do suppose, and one you've likely heard from a thousand other blogs a thousand times but it still needs to be said. And really, that is the problem isn't it? Why are they deaf to our words and arguments? Why do our opponents consider us childish, old-fashioned, or fascistic? Why do they fear us?
Probably because unlike them we want a restoration of the souls of western society, so that our nations can once again, for better or worse economic weather, remain rich in spirit, in culture. Its no wonder Republicans grumble and grime about money in that sense, because in the end, they are in fact, writhing in spiritual poverty.