Ask HN: Should I reengineer my membership a bit?

== What I have == http://www.bitesizeirishgaelic.com membership site. Custom-coded 2Checkout.com INS integration. Adds new members fine. Has a hard time pruning out-of-date members. I don't have proper statistics so far: I'd have to either manually dig out customer life time value into a spreadsheet, or have it coded up.

== The alternative == Reengineer parts of the structure of the site in order to install aMember http://www.amember.com/ . Custom theme its pages, link to its login script. Port existing members. Then pay $20/month on http://membershipsiteanalytics.com/ to get the statistics.

What would you do?