Sub-A (could be any brand) is $1,500, digs deeper, has more output, and has less distortion.
Sub-B (could be any brand) is $10,000, doesn’t dig as deep, has less output, and has more distortion than sub-A.
Yet Sub-B SUBJECTIVELY sounds better to you.
If some other people said they also heard both subs and thought Sub-A (that costs about 7 times less) actually sounds better than Sub-B, how would you feel?
It would make me think “diminishing returns” and make me feel that I overspent if I bought Sub-B.
Unless money is no object. Then don’t worry about it. It’s just money.