I have a further piece of advise, which I find to be increasingly useful in the age of the webz. You don't want to just buy seasonally. Of course, you want big drops, but you want deliveries constantly, every 2 weeks, at least, to keep the customer engaged. Epaulet is a good example of this. And doing a lot of house label and working well and directly with factories, makes this somewhat easier. It's more work, but the payoff is that you have customers constantly coming in, not coming in a couple of times, buying something they want, and then figuring out what they will buy on sale (which happens when you buy deep and only seasonally.) Own label, constant drops, shallow buys with no restocks (so that there is actual scarcity and exclusivity.)
With this model, the marketing strategies that work for 2013 make a lot of sense. You want a newsletter that goes out to all customers, as well as a black book for repeat customers. You want to have engagement on Styleforum and maybe on smaller menswear forums. Remember, there are thousands who post regularly, and tens of thousands who post sometimes, but there are literally millions of readers who will find your thread through organic search. This helps both your local market had expands past, so that you are buffered against local economic downturns (I know a lot of European boutiques that are being bolstered by American sales.) Also, it keeps repeat customers engaged in your brand with fellow enthusiasts, in a safe space. The haberdashery model can and does still work, but it has to be built with 2013 technology and customers in mind.