Cartridge alignment tool

Excellent protractors can be had for free and up to big $$$.  If you have multiple tonearms/turntables and swap out cartridges regularly, then it make sense to invest in a universal protractor like the Feicket.  If you have one tonearm and one cartridge, a custom protractor like the MintLP would suffice and give you an accurate alignment.  You can also go on the Conrad Hoffman website and print off a custom protractor free of charge.  There are a lot of excellent options based on one's budget, system requirements, and desire to obsess over details.  

@chakster, $150-$200 would be a fair price for an in-home alignment by a knowledgeable and respected setup expert using the most sophisticated measuring tools like the Audiomagik and Acoustical Systems SMARTractor.  I am big fan of the Feickert Universal protractor and own one myself, but it only aligns one parameter of the cartridge set up and not everyone has the time and expertise to optimize VTF, SRA and azimuth in conjunction with the alignment. 

Depending on your location, there may be turntable setup experts that travel to one's home to set up  tonearms/cartridges.  If you don't swap out cartridges that often, it may be more economical to spend around $150-$200 for an expert with all the tools.  I agree that the Audiomagik and Acoustical Systems SMARTractor are excellent tools, but they have a combined cost of $1300 which may be cost prohibitive for many audiophiles.