10-29-12: Pdspecl
Well, I would like to mention the older Mirage M series speakers. Not much for looks but they were very well made. The main drivers do NOT require new surrounds like Infinity speakers. I had a 20 year old pair and they sounded as new.
A pair of 1996 Mirage M5si's still anchor my HT 7.2 surround rig, and I have no intention of sending them on, In fact, the speakers they replaced are also nearly timeless--ADS L1090 series ii. Both speakers use butyl surrounds on the cone drivers and the cabinets are very solidly made of thicker-than-average MDF.
The continued popularity and high resale value of both these brands is testament to their sound designs and durable construction. I bought my L1090s the year my daughter was born in 1987 and I have no doubt they'd continue to deliver today. I've seen plenty of 20-30-yr-old ADS speakers fetch $500-1500.