Any essential options to consider when purchasing or are they all much the muchness?
I.e. if I look at the CB site, we have
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http://www.craftbrewer.com.au/shop/details.asp?PID=719 @ $57.50 (analogue, 32 brix)
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http://www.craftbrewer.com.au/shop/details.asp?PID=1135 @ $69.50 (analogue, 32 brix & SG)
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http://www.craftbrewer.com.au/shop/details.asp?PID=3439 @ $169 (digital readout, 0-35 brix)
Am I right in thinking the $69.50 option just saves the "effort" of multiplying the brix reading by 4? And for the barleywine boys, I'm guessing the extra 3 brix on the $169 model weren't required even for your big (as in OG big) brew?
I have birthday money to spend.