Would you sit separately from an 11 and 14 year old at a concert

[JustMe]

So, one of dd's favorite artists will be playing at a city 2 hrs away from us this coming summer. Ds loves this artist too. When the tickets went on sale dd was very excited and insistent we go. I was okay with it. The regular tickets for the 3 of us were very far away from the stage. There were some "platinum" tickets available that were more money but not prohibitive. For some reason, they only sold them in groups of 2 (I could not buy 3 for the 3 of us). I had to make a decision quickly as tickets were selling. Ds said he didn't want me to buy him a ticket, he doesn't really want to go. Now, I know this was because ds is more aware of money realities. He also wanted to make his sister happy. He loves this artist. I asked him several times, he stayed consistent and I bought 2 tickets--for dd and myself.

I am now regretting this. I feel bad about leaving ds out. We will be staying the night as well, as I don't really want to drive home that late after a concert. Ds loves staying in hotels. Ds knew all this and still said no thanks to the concert. It doesn't seem right though and dd is more assertive about her wants in this way. OTOH, ds does feel he gets less than her--her just doesn't always express it at the most appropriate times. I am tempted to buy myself a not so good ticket and let the kids sit together and I sit apart from them. They will be 11 and 14 by then. The venue holds about 20,000.

Of course, if ds continues to outwardly refuse I would not..but if he is okay with it..would you do this?

Or should I just hold ds to his word and maybe do something else with him?