Selvarin said:
A) You don't have to pay for new ink cartridges for your printer because ~viola~ they're already printed out in the Map Folio I. (Printing in color will use 'em up, although I've done some in grayscale.)
This presumes, of course, that you want to print the map. I run from my laptop. I look at the map; the players rarely see it. And if the map folion is a perfect bound softback, I'm guessing I don't want to spread it out on the table even if there was one I wanted them to see.
If you don't have or don't like to use a computer at the gaming table, that might be a point.
B) Beats making your own maps on graph paper (or even using Campaign Cartographer) in most cases. They just look better than most print-outs.
Let's see... is the school of sorcery among those maps? (Quick look - yup) I think a faux vellum look is not a fair tradeoff for a nice crisp map with clearly defined grids and contents. I remember using that map and being aggravated by the fact that it didn't even compare, for example, to the detail of the map in Tome & Blood.
Plus what 3catcircus said on this subject.
Of course this is a bit of a strawman. The main reason one would question whether it is worth it is because you can get the maps for free from the WotC website.
C) It's only, what, $9.95 or so? A pittance.
That $9.95 would put me over my budget for the month. It's harder and harder to squeeze 4 gaming books into $100 these days. And if I did have the $10, I'd be tempted to save it for next month to go towards a product whose content I can't get free online.
Don't get me wrong, if you enjoy having these maps in a printed format, then more power to you. But for your practical reasons, I am not seeing it.