u/outabsentia

I've been drinking puer for the past few years, mostly factory stuff (Dayi, Xiaguan, Haiwan) and I'd like to look into storing some cakes at home for aging. The question I'd like to ask you more experienced drinkers is, what teas are worth aging? Is it worth storing factory teas (considering the fact that aged cheap cakes are not that expensive anyway)? If we're talking about aging boutique teas, where should I start? The puer world is so vast once you peak beyond factory teas that I don't really know what to look for. I have direct access to Taobao and can do shopping directly in China (Beijing mostly).