I've got a Pentax 6x7 (MLU version) which I quite enjoy, but I'm now considering upgrading it to a 67ii. My 6x7 is in reasonable condition, but this particular 67ii is in very good condition and is with box and manual etc. Obviously I'd incur a substantial cost to upgrade given that 6x7 bodies are fairly cheap whereas 67ii ones are still expensive (eg $1000 to $1500). So, would I gain much in upgrading? A built-in meter would speed up my workflow, and the option to be able to use aperture priority would be handy, even if I wouldn't always use it. Are there any other items which would make it worthwhile, or should I just keep my money and stick with the 6x7? Thanks!