My 2p.
I'm fairly new to the hobby as well (3 months), and as some of you have said already, it can be as cheap or as expensive as you want. I have gone down the "cheap" route and bought secondhand machinery. £40 80mm bandsaw, £60 305mm disc sander, £30 Pillar drill, £100 planer/thicknesser, £90 1/2" router and table, £40 scroll saw. The 10L ShopVac was new, as is my B&D Workmate. I already have a cheap table saw, and with all that I can (in theory) make anything I want. Buying everything new, same specs would have cost me around £1k. Selling everything I have bought so far I probably get (most of) my money back. There's an of adage, "buy cheap buy twice" and it's true. I can use a bigger (not necessary better) bandsaw now that I've inadvertently got into bandsaw box making!
Wood-wise I have mostly been buying off cuts, which were fine for small bandsaw boxes, door signs for the kids, scroll saw projects like puzzles etc. I have "invested" in some walnut, beech and sycamore boards recently, and now that I have a planer/thicknesser, the world is my oyster (so to speak). The latest box I have made (will post later tonight) are some round box about 100mm diameter, made from partially spalted ash. The wood blocks cost about £3 each, plus other minor cost (but minus the joy of making them and satisfaction of people appreciating them), so definitely cheaper than what it would have cost in a shop. Not sure how it would cost the OP so much for the pine. Sounds like you've been ripped off. A railroad sleeper would have cost £10 at Morrisons (last week), and you can probably get 8 (or more) pieces of what you need from that (if you have the right tools).
Incidentally B&Q sells beech round blocks for about a tenner. They are targeting wood turner with those (wish them luck!) but you could have just apply a finish on that and call it a chopping block! Or get some off-cuts from various places, and glue them up and make a chessboard-like chopping board. Will probably look better than a pine one, and (cost wise) cheaper too!
Good woodworking!
Adrian