Not every AI stock is expensive.Artificial intelligence (AI) stocks keep moving higher, and that's despite worries by some that AI is all hype and no substance. The VanEck Semiconductor ETF, which is flush with AI stocks, is trading up 31% year to date, and there's no shortage of good news for AI investors, some of which suggest that AI has staying power and real financials behind it.One bit of well-publicized good news in AI is that Oracle just said that it expects its cloud infrastructure business to 14x ...