As he usually does Jeff nailed it.
We made the decision to go newer/bigger boat only because we decided that more space was required. Raven is not a 'large' 34'er and whenever we were away for longer than a weekend space really did become an issue. To a large extent that space was for storage as we like to get away from the necessity of restocking. The new girl though 41' is still 'small' in that she is a small 41'er but she suits our needs and wants perfectly.
The Wombet and I spent so many evenings on Raven discussing the change and it all came down to "if only she was just that little bit bigger" then we would have put the money into constant improvements, economic sense or no economic sense, simply because we love that boat. However, having made the decision to 'upgrade" we knew that meant younger. We chose to pay for work that was already done and equipment that does not need replacement rather than embark on yet another major refit.