Even with storage space-a-plenty, my limit has been reached. Any new projects will be based upon improvements to what's already there (like the MI-80 which has all the kit on which will be moved over to the Stumpy, which will free up a load of parts to be moved on.
You can see my stable in my sig.... ,The Brouwer and MI-80 came in AFTER the self-imposed ceiling (but there was always going to be a host frame for the Mavic kit I've been saving up so they don't count). Oops.
Not on the list is a hack bike based on a slightly dented Focus cross frame and the wife's Wilier and 2 Batavus shoppers- and the kids' XC MTBs.