Let's see. I've gotten about 3000 ldon adventure points so far. Only thing I've bought is a level 64 shaman spell called "bane" for 650 points.
Once I've done about 14 or so more Everfrost adventures, 12 or so in Butcherblock, and another 8 or so East commons, I'll probably be buying these 4 items:
http://lucy.allakhazam.com/item.html?id=44152
http://lucy.allakhazam.com/item.html?id=42230
http://lucy.allakhazam.com/item.html?id=42245
http://lucy.allakhazam.com/item.html?id=42167
So, yeah, there are lots of good things to buy, but you can't even see them on the adventure merchant until you have more points. The first dozen or so points only let you see charms mostly.