Snare necklace is handy, but you won't use it as often as you think...and I think its 6 ticks(?), with a long recast time, so after 4 ticks you'll have to be ready to extend it if you need to.
Basically, you're not expected to snare anything...you'll likely root/nuke if you're soloing (versus fear kite with pro melee skills), and standing up for ages getting a snare off is time you could be spent medding.
In a small group without a snarer in an area that requires one? How often does that happen?
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The only time I really used mine consistently on my cleric was duoing spirocs with an enchanter buddy. I'd pull, he'd fear, I'd snare...charmed pet would do the rest. My only job was to heal the pet if it ever got low.
TL;DR - snare necklace is handy but overrated, there's times where the extra STR (dwarf) or conveniences like being able to bank in Freeport/having more vendors available are more handy to you.