Sell both and get an A4000T or alternatively an A4000. Allows you to use any Zorro expansion (Z3/Z2) and, even if you're not impressed by AGA (I'm not either), some AGA games and demos are very cool.
I'm in a similar situation myself but between an A4000D and an A4000T
It's been ages and I never managed to decide which one to let go..
