Just to add: I bought a $200 printer from monoprice that does a pretty darn good job keeping up with my $40,000 printer at work, and can print ABS just fine. Yeah, it may be +/- 0.001" compared to the stratasys but for $200 I can't complain. That and $16 for a spool of filament is the cost of entry.
There ain't nothin' printed in plastic FDM that is +/- 0.001. Metal neither, at this stage.
This would be comparing similar prints that were printed to some dimension that is a factor of nozzle width and distance per step of the axis. Actual variation from your drawings can be a lot more. For example on the y-axis my $200 printer can increment somewhere around 0.004 inches at a time (as advertised 100 microns), and the nozzle itself is near 0.002 inches. Those are conversions; the machine is native to metric. It takes some care to make sure if you need precision that you work within the limits of the machine, meaning the resolution of the axis and width of the nozzle. With some trial and error however I find the $200 machine easy to work with and quite capable of producing consistent parts that are very comparable to those made on the high end machine.