Finally managed to find a reasonably priced copy of Angel Beats (plus a showcase of my Key Visuals collection) : r/AngelBeats
Angel Beats! Misc Box Art Cover by AnimeDesigns
Angel Beats Vol.3 [DVD+CD Limited Edition] - Solaris Japan
YESASIA: Angel Beats! (DVD) (Vol. 4) (Taiwan Version) DVD - Proware Multimedia International Co., Ltd. - Anime in Chinese - Free Shipping - North America Site
DVD Anime Angel Beats Vol.1-13 End + OVA ENGLISH Version +Tracking Shipping | eBay