I don't want to appear one of those people who come on to a thread to state how much they hate the subject but may I put forward something about coffee drinking from a different perspective? Me, I've never drank coffee and can't understand the rigmarole around it. I discovered quite by chance that I am caffeine intolerant and even trace amounts will trigger the full aura-based migraines so I can't even enter a coffee shop or I'll come out with a migraine in the post. So it mystifies me how there is a whole litany of coffee-adulation surrounding this stuff. It amazes me to see people think they need coffee to wake them up or jolt them out of a stupor. Is this real or an affectation people think makes them somehow 'cool'? If it's true that it does 'wake people up', how is it that they can drink coffee at night and still drop off to sleep normally? Would I be wrong to declare coffee illegal in my kingdom?
One could say much the same about the adulation of bicycles, beer, art whatever ....
Sorry you can't experience the real-thing, but a decent coffee like a decent ale is worth the effort compared over Nescafe instant or keg John Smiths/Stella for example. It need be no more rigmarole to make a decent coffee than it is to make a decent cuppa in a tea pot. But, at the end of the day you either like the stuff or you don't and (if you do like it) I'd hope you'd recognise the differences in qualities, but if (like Mrs FF) instant floats your boat, that's OK too.
On the effects of caffiene, there's no doubt it gives you a jolt awake, but it depends on context. Certainly different Teas/coffees have differeing amounts of caffiene, and the more we have the greater our reaction to it, much like other drugs and stimulants. The first coffee of the day has a notable hit, successive ones less effect. If you suddenly stop taking caffiene you do get withdrawal syptoms too, usually headaces and cravings. Audaxers often forgo Caffiene products the weeks before a really long ride so that the effect of a coffeee in the middle of the night is a very significant hit.
But if one drinks a lot of coffee during the day, then a late night coffee has minimal effect. I often have strong coffee or tea and rarely suffer insomnia because of it (though occasionally it does happen if it's the only coffee I've had since brekkie). Other factors also come into play though, I have sweet tea/coffee and the soporific sugar rush probably negates any caffiene effect.
Any how, IMO, good coffee like good beer, wine, sex, food, music and art are worth savouring!