MS SQL 2008 Very long page life expectany

I used to have variability with an 80,000 maxima. After rebooting our SQL server for the first time in a year after some performance problems, page life expectancy is climbing higher and higher - now at 173,000. A page I found on page life expectancy seemed to indicate that larger page life expectancy was better. But they seemed to be referring to far smaller numbers on the whole. Any MS SQL tuning experts on here have a sense of this parameter? Is it possible to grow too big??
amigan_99Network EngineerAsked:
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David Johnson, CD, MVPOwnerCommented:
a long page life expectancy is a good thing as the record will be recovered from memory and not from disk. it is when PLE is very small that it causes a problem.

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amigan_99Network EngineerAuthor Commented:
Great! It sounds like after the reboot it's finally taking best advantage of extra memory we threw at a while ago.
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Microsoft SQL Server 2008

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