Even though Gilbert's Deli broke the hearts of many of its most loyal patrons by leaving North Dallas and moving to Addison, there are too many things about the restaurant that make the drive worthwhile. The meat loaf sandwich, the bagels, the pastrami, the vegetable soup, the knishes--all of which cost money. What doesn't cost are the pickles, which are placed on every table alongside a mountain of crunchy bagel chips. Those deli pickles are of two varieties--kosher dills and half sours--and besides their abundance, they make the lips pucker, the mouth water and prepare the taste buds for the deli food that follows. If you ask Alan Gilbert where you can purchase a jar of these pickles, he has been known to reply, "If I tell you, I'll have to kill you." Rather than press the issue, the occasional drive north will have to suffice.