I have AutoCAD and have been using it continuously since May of 1988.
AutoCAD may be a bit of an overkill at home for a hobbyist, but it's GREAT for what I do.
For someone to use AutoCAD only for work in a home shop with random projects - it is quite pricey.
In my business, I often need to produce 3d drawings; and AutoCAD is great for that - but there can be a lengthy learning curve.
I also have a nice plotter (for 2d output) that takes roll-feed media up to 36" wide.
I do not have the ability to make 3d plots in-house (a.k.a. Solid Models), but do fairly often send files exported to .STL (stereolithography) files for off-site parts.
If I wasn't a full-time inventor, I probably would not use AutoCAD - due to the price tag, but in my case it's justified.
Otis Guillebeau from Auburn, Georgia
OPG3 Tweak everything!