Kinda have the best of both worlds here in Ireland right now. Between 1 great family run film mecca (Gunnes) in Dublin, and another pretty decent photography shop in Cork (Barker Photographic), it's possible to get film without resorting to the web. Moreover the two aforementioned bricks and mortar stores will both courier anything via next day delivery anywhere in Ireland. In addition to that, in recent years one of the Irish film stalwarts here has opened up his own online web front (thephotoshop.ie), through which he will supply film supplies anywhere in Ireland just as competitively priced as the two physical stores mentioned.
In addition to this, I can then order through the web also, with two great places in the UK (Silverprint & AG Photographic) that will ship to Ireland, a third (Macodirect) in Germany, and then Freestyle in the US for a bulk order when the prices can't be ignored.
You can also of course get film elsewhere here, but you will be heavily gouged, and with good film stores in the two biggest cities here, there's really no need.
I think getting hold of film supplies is not the hard part, with the main issue being able to afford commercial processing. Currently a roll of film here will run you from between €3- €5, but processing will run you €12- €15, with no commonplace processing only options really available. In addition, there's only one place left in Ireland that will process E6, so slide is as good as dead to most people, alas.
I think what is really needed, if someone had the appetite for it, is a centralised clearing house for film processing. Basically one giant location, where film could be mailed in from all around its geographic catchment area, processed and mailed back with scans or prints. Costs could be driven through the floor, and anyone could get film, be it b&w, c41 or e6 processed very cost effectively (I'm thinking €6/ €7 a roll inclusive of shipping with prints or high res scans). 2- 3 locations in each of Europe, the US, and Asia (basically enough locations to both minimise shipping costs and maximise economies of scale). That would be the game changer film needs, imo. Moreover, when up and running, then hit the market with a big campaign to get those who abandoned film back (think everyone who bought into digital, but who ever only wanted a handful of 6x4's, for example).