A sold my big dob last year, great scope, but it was a problem to move, even around my yard, and required a lot of room to transport to a dark site. The weight was just too much for me. I think many of us go through 'apeture fever' until we reach a personal limit of tolerance for the increasing inconvienience. Think hard about how you will deal with storage, moving it around, and offsite transport. Compare the views if you can, and remember that the initial 'awh' of bigger apeture quickly becomes routine. I wish I had kept my 12" instead of 'upgrading' to the 16".
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