Here's my opinion on the "cheap" pressure bleeders: fluid under 30 psi air pressure for 15 minutes is not going to collect enough air to make a difference on a car that's getting its fluid replaced 3 and 4 times a year. I use a pressure bleeder because I bleed my brakes so often, it's a PITA to do it w/ two people all the time.
Considering the low humidity in Reno, I'm not worried about air potentially getting into the fluid, and my experience at the track backs it up, as I've never noticed a difference between brakes bled w/ a pressure bleeder or by hand (er... foot).
Now, if you're a shop that's putting brake fluid into a car that's going to be driven for the next 5 years w/o a flush... yeah, take the extra step and store that fluid in a vacuum can, use a bladdered bleeder, etc. But if you're like me w/ a track car that gets bled before each event... IMO, you can get by just fine w/ a month old opened can of SuperBlue and a cheap pressure bleeder. I've never had an issue w/ a spongy pedal or fluid fade.
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