Yamaha YVS-100 Venova

It's fun for a while, and sturdy and light enough that you can take it out for a jam session at a bar without having to worry about it, but it isn't a serious instrument. Not much margin for tuning and even if you manage to do it half the notes will still be slightly off. Good gift for a kid that's getting started instead of the dreaded recorder but if you're half serious about music might as well just save some money and get an actual sax.