There are so many different coins, and series of coins your choices are endless. If I was a billionaire, I couldn't even come close to getting all the different coins.
That's not at all true, and I don't think anyone, even those who prefer raw, is suggesting as much. Be careful not to misinterpret what anyone is saying.
Wow, if you find that place, let me know. Seriously, deals are where you find them. If you live in an area that has some coin shops, frequent them, get to know the owners and customers and get to see and evaluate lots of coins, after all, how would you know a good deal if it bit you in the...lower elevation. So, coin shops, flea markets that may have dealers or people who have SOME coins. E-bay is thoroughly disparaged here, but most of us have bought from them at one time or another. Possibly the best tell-tale to avoid BAD deals is when someone is offering you a GOOD deal. The main thing is to enjoy what you are doing.
One of my favorite places is my local coin dealer, where they will often let me go through their "junk" silver. If you know what to look for, you can pull some good stuff for not much over melt. My other favorite place is the bank... Coin roll hunting can be fun, and if you're a little lucky, you can find some really nice coins such as the two in my avatar. I also found a silver half and dime yesterday doing this. Bottom line though is to collect what you like, and what appeals to you. If you're looking to do it for profit, my advice would be to save up and buy high grade scarce/rare dates as they are usually always in demand... stuff like 1926-S Lincolns, or 1932-D and 1932-S Quarters, for example.
It depends on what you're buying. Personally, I'm not an advocate of slabs unless you're buying a rare date and you don't have much collecting experience. Even then, if you know a reputable dealer, you can safely buy unslabbed rare date coins from them. I always recommend studying coins as if they're a school class before you buy anything. Get to know the "ins and outs" of collecting, most especially how to properly grade coins, how to detect fakes, and how to best store them. A good safe is always a good investment if you're going to be in for the long term.
The best way to tell if a coin is cleaned is to look at a bunch of uncleaned coins... you can do this online, or in person at any reputable coin dealer. Once you look at enough coins, most cleaned coins will stand out like a sore thumb. Uncirculated coins usually reflect light in a specific, "circular" pattern. Cleaned ones do not do this... Usually, cleaned coins look dull on their surfaces. The above isn't all inclusive, but it's a general guideline. The more you read up, and the more coins you see, the easier it is to spot the cleaned ones.
You might want to invest in a Dansco album, and put a set together. You shouldn't have a problem doing this. If you like the silver eagles, you will likely also enjoy the Walking Liberty Half Dollars as they have the same design on the obverse (front) side of the coin.
Simply not true. It depends upon what you are collecting and your overall skill level. "Always" doesn't have much of an application in this hobby.
I am proud I am learning as I move on in the hobby walking liberty half dollar's have really caught my eye but I am always going to keep my options open.