My bf wants to spent 200 dollars on a motorcycle for his 7 yr old son?

my bf of of 6 yrs have been engaged for 2 yrs.he has a huge debt (25k)from his first marrage that he is trying to pay off.we have been trying to save up to get married for the last 2 yrs.i don't want to sound like a evil stepmom but we just spent over 300 hundred on his son for x-mas.his son wanted a motorcycle for x-mas along with many other things but did not get it.we told him we would get him one next x-mas.now my bf's exwife has convinced him to go in half on a motorcycle with her which would be about 200 dollars.200 dollars right after x-mas is alot for us.my bf said he will take it from his bonus check he got but i feel he should put that money towards his debt or our wedding.my bf was big in motorcycle racing as a kid and he really wants to get his son into it too.am i wrong to feel this way?