This is the best portable vacuum you can buy and possibly ever made.
http://www.ebay.com/itm/311804166453
The attachments and power head are polycarbonate, flat tooth belt driven beater brush, aluminum magnesium body, Kevlar bag lining, phenolic resin rollers etc. they will easily last 30 years and still run like new. It's heavy but cleans way better than a Dyson (I own one) and never lets any dust through it can vacuum the smallest particles without damaging the motor.
I bought the Dyson mainly to vacuum my cars but it feels and works like a toy compared to the Miracle Mate. It's powerful enough to use a leaf blower.