Honey moon at WDW

We are getting married on a cruise, 6 night then going to Disney for 6 nights aswell. We have been once together but I grew up there I’ve been 30+ times. She really likes all star sports because she likes sports. I’m thinking about upgrading us to the Polynesian and suprising her. I just can’t decide. It’s $2500 more; we are also on a balacony room cruise the week before. I’ve never stayed on the monorail loop. Should I go all out because it’s our honeymoon? It’s not that I don’t have the money. We make GREAT money; I’m a cheap skate. I finaly decided I’m going to buy a new vehicle and this will pretty much kill me getting a newer vehicle this year. Kinda selfish.. what should I do? Memories are forever but will we remember being at a nicer hotel?