In the end it is up to each of us to decide where to spend our money.
I will not buy an other Lee 2 cav mould but the 6 cav just work well for me. I will say that I probably own far fewer moulds than most of the others here with 30 years of casting experience. I generally use a single, maybe a couple, moulds for a certain caliber. I don't own 10 357 moulds.
Like Gear said, buy the right tool for the job. As long as it does what YOU need it to do then it is good enough, isn't it?
I have no desire to try and convince Rick to use a Lee mould and I am sure he doesn't care if I do. Long as we are each satisfied with the results then what does it matter?
Lee fills a valuable niche, they make low cost, decent moulds. Not great moulds, but functional. I have had some great results with some of their designs, just wish the manufacture was a bit better. Lyman makes a nice mould but they keep changing designs, make them undersized for my guns, and don't make the designs I like. RCBS makes nice moulds but the block size is ridiculous. Those huge blocks for a 2 cav 22 mould? Too tiring for me to really like using them.
Buy what you like and use it with pride.