As you already know, no one can answer your question other than you. But boy have i been in your shoes..... In April 2011 I sold my 2001 228 Seafarer for all the same reasons. Granted my kids are younger than yours, but I told myself the bay boat was "the boat" for us. In May 2011 I bought a pristine 2009 Pathfinder 24 Tournament with 50 hours on it, a great bay boat!
After my kids cried for a month that there was no shade on it, my wife let two pairs(hers and then mine) of brand new Costas blow off her head/face in a 15 minute period and I couldn't go nearshore which is what I like to do, I sold the Pathfinder in July 2011 and bought a 2006 228 the same month.
Moral of the story.... Never loan your wife your Costas after hers literally blow off her face. Seriously, you've just got to determine if you value the capability to entertain family/friends and at times handle heavier seas. If you do, keep working to develop an inshore style in the 225. If not, make the move.
I would vote for the 225 that's useless to you.
Couple thoughts....I assume you use the forward seating platform as a fishing platform. A properly sized molded cooler(yeti or other brand) between the two seats could help make that area a solid platform. Thane you looked at using the SeaSucker rod racks. A few of those strategically placed can really help with rod storage and can be removed when using he boat for the beach.
Good luck with the decision. I can attest that you can always come back to a Grady if it doesn't work out!
Padgett
Mixin'ItUp
Savannah GA