Taj Gibson has made nearly $40 MIL playing in the NBA -- so, he's a big baller -- but the Timberwolves stud says there's NO WAY he's droppin' $1,500 on LaVar Ball's new shoe!

For the record, LaVar hasn't debuted his upcoming "LaVar-icci" kicks yet -- but says the price tag will be more than 3 TIMES higher than his son Lonzo's ZO2s

BIG MONEY KICKS
Lavar Ball

So, when we saw Gibson at LAX we had to ask ... you gonna cop these kicks or what!?

"No, I don't think I'll wear a pair," Taj says ... "But I'll probably show support."

Of course, Jay-Z recently threw his support behind BBB -- saying he was impressed with a black entrepreneur challenging massive athletic wear companies like Nike and Under Armour.

Still, ya gotta wonder if $1,500 is too much for Jay, too.

I BALL WITH BBB
Tidal