How permanent can a WUBI install be?

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http://askubuntu.com – Just installed Ubuntu 12.04 via WUBI to my lenovo ideapad laptop. I originally wanted to dual boot with my windows7, but the windows7/lenovo combination is configured to take up 4 primary partitions, and my hard drive is a bit to small for a logical partition install. So I thought I would do a WUBI install before getting a larger hard drive to accommodate a larger install onlogical partitions. Question: My WUBI install is working out really nicely in fact. Everything is fast and dandy, and it outperforms the windows OS alreaady there. -- So, is it worth migrating to a permanent install if WUBI (HowTos)