I've had a Multi Cam for 10+ years, good machine overall, and you don't have to have a tool changer its nice but not a must.
Kevin
You are correct, you don't have to have it if you are ok with manualy changing tools. I can't imagine doing it that way but than again our programs on average use 3-5 tools.
3 tool changes per job 5 jobs per day = 15 + times manual labor etc.
More is less as they say, plus when spending good amount of money on CNC why not do it right ?
Than again, it always depends on what is going to be done on such machine.