Maybe as an independent it WOULD be worth it. It IS a decent dram. However, I'd not rate it anywhere near Cragganmore in terms of manners. It does NOT rate against A'bunadh, Highland Park, or any of the other stronger tasting whiskies (from any area).
I'd prefer Tamdhu to Tamnavulin (which I won't buy again, I don't think), but I certainly look to other whiskies in the same price bracket before returning to Tamdhu (but I HAVE returned...).
It is not particularly peaty, but it is malty almost in the way that an Irish can be. Like I said in the first post, it has a strange refreshing quality that makes it kind of interesting. But I'd buy a Bowmore, Bunnahabhain, Cragganmore, McClelland's, Pulteney, Aberlour, etc ahead of it, for the same price. Here, Tamdhu is cheaper than all those, save Aberlour, so it's not a bad buy. But you're talking a top dollar price for whisky that you may not find all that stimulating.
I can't make the decision for you, obviously. Tamdhu is a nice dram, but I wouldn't pay $60 for it.