Not all artificial intelligence (AI) stocks have to break the bank.Finding bargains in the artificial intelligence (AI) investing world isn't easy, but they're out there. Three that I've got my eye on are Taiwan Semiconductor (TSM 1.60%), Adobe (ADBE -0.25%), and Alphabet (GOOG 0.45%) (GOOGL 0.54%).All three of these trade at a hefty discount to the broader market, yet are still quite promising. If you're looking for value in the AI space, this trio is an excellent starting point. How do these three fit int ...