We know also from our work on the natural gas trucking industry and the fill-up station businesses of Westport Innovations ( WPRT) and Clean Energy Fuels ( CLNE) that tons of trucks are being bought to comply with new emissions rules. We also know that Allison offers an automatic truck transmission that is taking share away from Wabco ( WBC), which in itself is a very good company. Now, Demandware is one of those companies that I hope you were lucky to get in at $16, but I think has now reached a level where I cannot possibly tell you to hold on to it. I think that the register must be rung and the stock cannot and should not be bought in the aftermarket. Allison, on the other hand, represents genuine value and the fact that it didn't go to a premium allows me to tell you that this is a terrific play right here on the resurgent truck business. We're invoking that stock sage Aesop here, the tortoise that is Allison now has it all over the fast-starting hare. Sure, if you include the first-day performance, the rabbit wins. But going forward, I'm taking the turtle. I like the long-term stock prospects of Allison much more at this point than Demandware.