about PS CC memory release problem

before, I love PS program really!

but I have a big problem about this program...

that is.. the memory release problem.

I saw official answer that it's not bug(memory leaks) and PS program is designed like that for high performance working.

but i don't think so. it's biggest obstacle in my work.

 1. I'm working with 30~40mb PSD files.

 2. first loading time is 2sec.

 3. close document -> memory remains.

 4. second loading time is 1sec. (memory remaining is just for 1sec)

 5. another PSD file loading -> memory remains.(stack)

 6. repeat.. repeat..

 7. memory full -> program crash!

and another solution was using 'purge' menu.

but it still uncomfortable because added "purge all" menu on my work process.

when I forgot 'purge all', program crash!

so.. I want make a proposition...

 1. make preferences option about "release memory when file close"

 2. when memory is full, release memory that closed file before.

 3. flush memory periodically.

thanks!!

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My system is Win7, 16Gb ram and currently using 7 cache level, 1024K tile size.