I'm well pleased with my GO555X and riser block. I suppose it depends on how much resawing of wide stock one is going to do. I use mine for the occasional 12" board and it works fine, though it's not super fast when sawing something that wide. For boards 8" or less, it's a breeze. The saw works as advertised and suits my needs.
If I every buy another BS, I'll go with the larger one that you're considering and use it only for resawing. The G0555X will then be dedicated for curved sawing. Chances are that won't happen though 'cause I'm restoring an old Craftsman 12" that I've had since the late 60s for curved sawing. For my needs and uses, these two saws will likely suit me for the rest of my life.
Stephen Edwards
Hilham, TN 38568
"Build for the joy of it!"