SS Hardware and kegging equipment. You may get few sales on this stuff but you will inspire many.
Show people what a $3-$5K fully automated home brewery system looks like; show live demos with it once a month or so. You won't likely sell the entire system but can piece it out.
Most LHBS stores that I have been in are happy just selling buckets, carboys, extract, and turkey cookers to novices.
You should want to show new brewers how easy it is to transition to all grain, selling them new equipment along the way.
This is a niche market so design your store for repeat business and don't screw over your customers. Instead of prepackaged kits have a list of recipes available with a free packing service and kit discount.
Crazy how most stores will charge more if I bought a prepackaged kit vs if I came in with an ingredient list containing the exact same recipe.
Fresh grain and bulk pricing on large orders go a long way at keeping customers happy. An alternative to expensive wine kits would be cool, I know some vineyards will sell crushed grapes in 50+ gallon totes that you can distribute.
It also would be cool to find a shop with used hardware due to customers trading up, you can be the gamestop of LHBS.