LOZ OOT stl or songbird ocarinas?

this has come to my attention, whats the differences between the STL oot and the songbird ocarina's oot
Songbird ocarina i heard that it's more tuned properly and they have made it more of a concert series ocarina. Stl's oot is cheaper ($74) and looks better in my opinion. i'm pretty sure they are both tuned to the key  of "c" you decide which is better
http://stlocarina.com/ztenor3.html

http://songbirdocarina.com/zelda-ocarinas?page=shop.product_details&flypage=flypage.tpl&product_id=34&category_id=13