It sounds like you got some of those tomatoes bred for commercial growers - perfect appearance, and almost no juice (good shippers) or flavor. Where did you get those plants? Around here, there are some local nurseries that start their own seeds, and have better varieties than the chain stores. Somebody on another forum recently brought up Big Beef - a tomato I grew several years ago that won the taste test of all the tomatoes I grew that year. The only reason I stopped growing it was that it was not heat resistant, and I had a few very hot summers in a row. This is a hybrid, proving that all hybrids are not flavorless! I am going to try it again, since the last two summers have stayed in the low 90s, and I'll put them in a self irrigated container. My tomatoes in those produced better than any others ever have, and, though some may think that constant water results in washed out flavor, it is not like flooding - it is simply a constant moisture, and this resulted in incredible production, so much so that I am going to grow fewer and farther apart next year, so they will be easier to find!