My two cents:

1) Make sure you have enough interested offspring to will this stuff to, and
2) Only buy stuff that is heirloom quality
3) You could probably use a broadbonnet, or two (bias: I make them)

The good stuff is more satisfying than cheap imitations, requires less space to store it all, and looks better. At some point your bank account will advise you on when to curb your spending.

Finally, when you arrive at a garment that is awesome but you are ready to let go of, put it on consignment at the Museum to generate a little income for them and to ensure that interested parties get first crack at it!