I purchased the 75 dollar gas getter and as I already own a compressor I think that it does the trick for me.
You start the gas getter off at a low pressure of about 25 psi and then increase as the co2 starts to come out.
This unit will pull 24 mercury and completely gets the co2 out of my wine.
The only drawback I find is I have to baby-sit the carboy for the 20 minutes it takes to fully degas the wine .
The small co2 bubbles come out very quickly and easily and then the very large bubbles start to come after about 5 minutes. I have to give the carboy a shake every 30 seconds or so and this releases a lot more small co2 bubbles.
I'm sure that a vacuum aspirator requires the same babysitting.
If I didn't own a compressor I would buy a vacuum aspirator but since I already own one I bought the gas getter.
VERY pleased
Digger