IMO H as an investment plus justifying it to your husband would just really upset your DH, just try to convince him that you love the bag, you want it 'coz you've been constantly dreaming of it and it's time you deserve something a bit more expensive on what you used to have. Although promises can be made and more often be broken, try to promise him "JUST THIS ONCE SWEETIE". Perhaps he might change his mind and you know what the ideal move that should come next.