This tank scares me. First off, it only takes a few seconds of exposure to ambient temperatures to ruin your semen. I wouldn't want to have to monkey around with it. You should be able to go directly to the semen you want, grab it out, and get the rest back into the nitrogen in about five seconds.
Secondly, Shipping semen is around $200, and that's not something I'd want to do every year. The cost for charging a tank is mostly in the service, not in the product, unless you have a huge tank, so the way to save money is to have a tank that will satisfy your storage needs (or maybe be a bit bigger than you really want), but has a really long hold time. The CT tank only has a hold time of 42 days (!!!). If you don't use up all the semen you buy each season, this thing will cost you LOTS of money keeping it charged. If you do, you'll spend lots of money shipping semen every year.
May I recommend this tank?
http://salem.craigslist.org/grd/3959218116.html Static hold time is 215 days, and it doesn't take a lot to fill the tank. My supplier will fill it for $30, and since I don't open it often, that happens only two or three times a year. Also, the canisters are deep enough that the AI tech can easily grab whatever canes he wants without having to monkey around, possibly damaging the semen.
Figure filling 10 times a year on the tank you're looking at, presuming you don't want to throw out your shipped semen each year. That's $300 for the CT tank. Worst case, my tank costs $90 to fill for a year. That's a $210 difference in one year which, given the $45 shipping cost on the CT tank, will pretty much make up the difference in price between the two tanks.
Hope that helps.
