A few facts about Jon (itw)
 

More HERE.

I am not surprised by this as I'd feel the same way. What I wish he / they would do is stop and do some live re-working of these hits to give them a boost. When was the last time Prayer had any changes to the live arrangement? The Jersey Syndicate Tour? Blood On Blood has been kept somewhat fresh by swapping up the live arrangement over the years. Remember how excited we all were to hear the full electric version return at Shepherd's Bush in 2002? Born To Be My Baby had some re-working over the last decade to make the final bridge after the solo more dramatic. Touches like that can make all the difference. IML is badly in need of something like that. It's been performed dryly with no deviation from the studio arrangement since day one.

Jon, if you want to sell out the desert twice, you gotta play your greatest hits.

There's nothing stopping you doing smaller shows like this week, there's a fanbase that would kill for the non hits and it keeps you fresh too.

He tried to do that with ballads (IBTFY, Blaze, Always, BOR) on the HAND tour. And the reaction was so dreading to him that he still brought it up during the 2011 Q&A in Dublin.

If you're talking minor instrumental re-arrangements they still do it from time to time - KTF in 2013 was updated, so was Wanted (Bobby's parts). Lost Highway for a while had an instrumental interlude in 2010-2011. I guess they could do it to other songs as well, but my guess is Jon feels like those biggest hits (Prayer and IML) should not be messed with, which is kind of true, because we are not the audience they are playing those songs to.

Nah, I'm not talking TLFR arrangements at all.

Born To Be My Baby is up there with any of them, so Prayer and IML do not get a pass. Little touches here and there (the Lost Highway bit was great! I forgot about that one.) These changes have no impact on the casual audience as they are still getting what they expect and more.

Most fans who go to his concerts would be content with hearing the 80s hits only. I remember doing "You Want To Make A Memory" for karaoke and most people there gave blank stares and some people were surprised to learn it was a Bon Jovi song.

....Which is so unfortunate. When I meet people and tell them I'm a Bon Jovi fan, I feel the need to explain that is all about songs and albums they've no clue about....that they don't know Bon Jovi if their knowledge is limited to the overplayed radio hits. It's like saying you know Springsteen because you know Born In The USA (and probably mangle what that song is about to fit some patriotic nonsense. )

Well, It's My Life and Livin' on a Prayer are both done with backing tracks as it's impossible for the band to pull out those huge backing vocals unless they hire a choir of some sort. Especially with the way Jon's voice are today, it's not really the right time to drop those backing vocals.
I guess they could spice up the outro in LOAP when the backing vocals are done, but all in all we will never see an arrangement change in those songs as long as they're going for the backing tracks. Have a Nice Day is another one of those songs with a backing track, so there's no coincidence that one hasn't had a single arrangement change live in 11 years.