Squeeze Play Manuever?

I have a question whether my play here was unforgivable or if there was some merit to my thinking.

There are six players left in a $10 rebuy tournament that started with seven players. The pot has $130 in it and the top two spots will be paid. The game started at 11 p.m. and it is now 1:15 a.m.

I have $9,300 in chips and the blinds are $150-300. There are $130,000 in chips on the table with two players holding most of those chips.

The under-the-gun player limps. I limp from the cutoff seat with 5-6 of diamonds. The dealer folds. The small blind completes for $150. The big blind, who has $6,000, looks down and says, "I think I'm going to do it." He then moves all in. The first limper folds. It is now on me.

I had already decided when he did this that he is most likely performing the squeeze play manuever. I have played with this guy many times and he loves to do it. I was 95 percent confident he didn't hold a monster. Although I had plenty of chips to play with I just didn't want to hang around for three or four more hours hoping to work my way up and I decided I was either going to get his $6,000 in chips and be in the hunt or get knocked down to where it was practically hopeless. I moved all in to get the big blind out because I wanted it heads up.

The small blind thought for a little bit and then folded. He said he had A-Q. The big blind flipped up A-9 offsuit. I was correct in my read and needed a little luck. I didn't get it and he paired his nine. I went out the next hand with my J-10 against Kings.

Do you think my decision to make a risky gamble this early in the tournament was incorrect? There wasn't a lot of money on the line and I decided to go with a read that put me behind but not needing a miracle to win.