a picture might help because there were a couple of different Aronow models built in that size range.
as far as value, if it can be had for a relatively low price and you want to build it and make it your own, it's worthwhile...provided you do the majority of the work yourself and can find power at a decent price. if you look at it from a purely "investment" or resale value, you may want to consider something else that is already done.
personally, i only consider a few boats when i'm looking...and Aronow is one of them simply because there aren't that many around and they are more of a conversaton piece than a fomula or fountain(which are also very good boats, btw) the boat has a history and a name that those who know the history of offshore powerboats, can recognize.
Lastly, and most importantly, if you do consider buying this, check the stringers, bulkheads and transom...that standing water would concern me.