I did, a J. Press, flat front, single button peaked lapel tux. I bought it when I was 28. I have owned it for years, worn it maybe 10 times and am certainly pleased with my purchase.
At $560 USD, and made out of a heavy, durable worsted wool that will hold up much better than the lightweight (though much softer) Super fine 120+ wools and wool/cashmere blends that Italian companies in particular favor, and with classic "American Trad" styling (flap pockets and single back vent), which I find strangely refreshing (especially given my usual views on such thing) the J. Press tux is a great deal and a good starter's tux. Only problem I have with it is that it is cut extremely loose and boxy around the middle. I think that a tux should be slim and elegant, and should shame at least the extremely overweight (i.e. if you need the pants taken out instead of in - American companies are forgiving enough of, um, large waistlines anyway,)