I think when we talk about which melting pot to get we need to look at a few things, how many bullets are you going to cast at a time, how many in a year and most of how much can you easily afford to pay for this pot.
For me I cast small lots as my LEE pot is a ten pounder so you don't get a lot of 45-70 bullets from a pot something like 160 is average so most of my casting sessions are 200 bullets at a time and for a year I could or would cast maybe 5000 for the year if I have the time to cast that many which I usually don't. That works out to around 104 bullets a week. If I could afford a better pot I am not sure what I would by as my first Lee pot is almost 40 years old and still going and the second one is around 15-20 years old so I might just step up to a LEE 20 pounder as if it craps I can get another for around $60 or less and when I look at the RCBS or Lyman or any other how many 20 pound LEE's can I buy for the same money? If I could I would have two twenty pounders one for pure lead, one for my ww lead and use my two ten pounders for my custom leads. and still not have the cost of any of the higher priced pots.
It all boils down to what you want in a pot and how much use you are going to get out of it.