The point others are trying to make is that Adv Toolmaker is part of standard building menu, so available all the time for standard resources. While for example Recyclers you mention are not part of standard building menu, they are part of the event offer, you can buy them during (and only during) the event for event resources. Other times they are only available for gems (3 of them). Common sense expectation would be to have event items in DD for the event. (Maybe with the exception of something being introduced to the game for the first time at the same time as event, which was the case for AT last year, but is not the case this year.) You get that?