Yes and no. Properties are usually valued based on what a similar property in the same area has previously sold for. There's not much else too it and there will be little room for subjectivity or nostalgia to be taken into account when calculating the guide price. This is proven by the fact that it's not often properties are sold or bought significantly over market value, whereas in football that's now part and parcel of the game.
Also, as with properties, whilst historic value of similar players factors into a footballer's valuation, there are considerably more variables to take into account - many of those being entirely subjective to the selling club. Replacement cost, market based cost, squad status, position, quality of league they're playing in, age, potential, then when you get to the bigger clubs factors such as brand and marketing value, contract length etc. Some of these are obviously measurable but you get my point.
I understand what you're saying but I think you've massively oversimplified it.