OK. You're looking at consolidation sites / re-sellers. If NCL is your ideal choice, go direct to their website. They will display their prices and in many cases it's a fallacy that the consolidation sites give a better price than you can get direct from the cruise line.
Those sites are saying "Call us now for prices!" because they don't actually have cabins reserved just for them to sell. If they did, they could advertise their price. You call them, they look at the NCL website while you're on the phone to them and tell you what the NCL price is. That will be the case in the vast majority of cases.
Cruise lines have a brochure price. I've never paid the brochure price because they also have "Early booking saver fares", "Latesaver fares" and sorts of other discounted prices. Those are available to everyone - not just travel agents / consolidation sites.
I've been cruising for a good many years. I do look at consolidation sites occasionally just to see which lines may have offers going. I honestly can't think of a single time when I've not got the same price direct from the cruise line.
DZH has been on a Thomson cruise (but he's up in the bath at the moment). From what he's said, it's a lot less formal than some other cruise lines. But, isn't it NCL who offer "Freestyle" cruising (which I gather is meant to be less formal anyway)?
Thomson use their own ships. They are much smaller than NCL ships will be. They may not cater as well for children (if that's a consideration for you).
I am old. I loathe the large ships - and, yes, I have tried a few. For about 4 years I went exclusively on the QE2 until bastard parent company Carnival decided to flog her off to rot in Dubai. I then tried the QM2. Once. Absolutely soul-less. DZH and I are now firm Fred Olsen / Cruise & Maritime fans.
But, everyone is different. For families, the larger ships are better because they do have the room and facilities to offer children's programmes.
Well, break open the piggy bank, Katy. Whatcha waiting for?
That's a fly cruise then. I don't do fly cruises. I have done but now can't be doing with the weight restrictions on the flights and the fact that if it's long haul, the flight back totally destroys the warm fuzzy relaxed feeling I had when I got off the ship.
Dancing as in ballroom or as in closing the disco? I do the latter. (Or I did up until my recent health problems.) Larger ships will have more scope for ballroom. All ships will have some sort of disco.
I've never been disappointed with the food on any ship I've been on.
At 15, DD will be challenging you at the closing the disco dance...