Can I hijack this thread and request a recommendation of a cheaper scotch to try for the first time? I don't think I've ever actually had it before, but would like to expand my horizons
There are a few good options around the $20 mark, but anything below I couldn't honestly recommend. My 'cheap' scotch of choice (or the one I give to friends who don't have a clue) is currently a Speyburn 10 year. Highland malts tend not to stand out as much as some of their counterparts in terms bold flavor (they don't tend to be overly peaty, but often have a sweeter start), but that is exactly why I think they are a good starting point.
I think it's a pretty good starter scotch for anyone, but I've Balvanie Doublewood for $30 before... and at the price difference it's well worth forking over the extra $10.
As for a splash of water in my scotch, it really depends on the scotch for me. I agree with Platypus in that I find adding water is much more about 'texture' than flavor for some scotches. I happen to prefer the 10 year Laphroaig with a larger splash of water than a 16 year Lagavulin or the 15 year Laphroaig. However, how much water (or any water at all) is completely up to personal preference. Try it both ways and decide for yourself.
Edit: Like RGWalt, I'm a fan of Oban as well, and now I'm going to have to find some Jura!