I've often wondered why, when someone buys something really nice there are always those who congratulate, and there are those who (in the words of some of the forum members) say "I couldn't care less what you buy"
It's a sad fact that many people don't like it when someone makes progress even promotion in the office causes resentment.
Some years ago I bought my wife an MGF Sports car, it was and still is absolutely superb, it was parked on our drive where many people walk by, many of these passing people I stop and speak to on a casual basis, as you do! Nearly all remarked about the nice car, but a good many pretended it wasn't there, looking the other way etc.
I think jealousy must play a part in this somewhere.