Level 5 TMaps

Not to thread hijack but what does one gain by GMing in lockpicking? I'm at 98 and have a couple +1 lockpicking skill scrolls. I've yet to find a chest I cannot pick so I was thinking about selling them.
 
Level 6 paragon chest is the only thing that needs GM lockpicking right now AFAIK. Although the Devs were talking about adding lvl 7 t-maps in the future.
 
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