I'd want to hear them and I'd read lots of reviews. They are certainly attractive and while most of the Infinities sold in the big box stores these days are pretty run of the mill some of them still have some legacy qualities. Last winter I sold a pair of Infinity Primus 360 towers, probably even newer than those Alphas, and they were actually a very impressive speaker! Imaged well, solid bass with balanced mid and treble, effortless even at high volumes. If I hadn't been bitten by the "vintage" bug I *never* would have sold them.
Anyway similar to those Alpha's in intended market, design, price, and probably sound as well. Stereophile had a glowing review of the ones I had which make me wonder if those Alpha's might also be "budget sleepers"?
http://www.stereophile.com/floorloudspeakers/605infinity/PS The guy that bought them must have found them in a scratch and dent sale because google suggests that CC used to sell those for around $1000 a pair and once (according to the Polk forums) had them on sale for US$599.
I wouldn't write them off just because they are newer, sold in a big box store and yet commanded a reasonable price.
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