I thought it might be a useful exercise to consider the things that we actually use on our tabletops in face-to-face games. À propos, I have some trouble persuading players to actually gather around a table: they prefer to lounge in armchairs and on sofas, each with his character sheet, note pad, dice, and pencil: and his laptop or iPad. This is a bad thing that they do, IMO. When I do get them to the table, these are the things that are found there:
• coffee cups, water and soft-drink glasses, wine-glasses, whisky tumblers
• bowls of nuts, chips, and other snacks, plates or packets of biscuits, boxes of sour candy, cutting-board, cheeses, knives
• coffee plunger, whisky-bottles, wine-bottles, beer-bottles, sugar basin, cream jug, water jug, soft-drink bottles, napkins
I see it as a benefit that Roll20 will un-share that clutter. As for things actually used in the game, we have:
• rule books
• setting description books, pamphlets, and print-outs
• reference works such as an atlas
• character sheets, sometimes enclosed in document-protectors
• writing pads
• iPads and often a laptop, smartphones
• index cards: pink, blue, yellow, and white
• a pad of Post-Its
• pens, ballpoints (often in many colours), felt-tips (usually in many colours)
• pencils
• erasers
• a whiteboard, sometimes with a painted hex-grid
• alternatively to the whiteboard, an A3 document display case with a printed FATE layout in it
• dry-erase (whiteboard) markers: black, red, green, blue, and purple
• wet-erase (OHP) markers: usually at least four colours
• a whiteboard eraser
• a damp rag
• a pump pack of whiteboard cleaner
• Cardboard Heroes / Disposable Armies figures, with bases
• Blu-tack
• dice
• poker chips
I note that the first five items on the list above are rapidly being replaced by iPads and smartphones.
I don't mean to imply the all those things ought to be emulated by Roll20. It's just that the first step in choosing what to emulate is seeing what is there.