The reality is that wood working is not an inexpensive pursuit. But I can think of many hobbies or regular activities that are just as expensive or more. Golf, scuba diving, parachuting, kayaking, off roading (ATV, motor bike...), hot rods...
S4S will do for some projects but will be generally limiting and relatively expensive.
When it comes to tools (of any kind), you have to pay extra to get a tool that does what you expect it to do. There are frequent good deals on Craigslist. If you can be patient and adjust your horizon, you can assemble a reasonable collection of tools for a fairly low cost.
Putting together a wood working shop is an endeavor and rarely completed, let alone accomplished in a weekend. You will likely just piece it together, filling gaps in your tool coverage as you go along.
And buy clamps. Plenty of 'em. You can never have too many.
Measure twice, cut three times, start over. Repeat as necessary.