If you wait for sales, buy refurbished tools, buy high quality used tools etc, you can save a whole lot of money. Sometimes you can get really lucky and pay 10% of what something retails for. You can also find never used display models that will go for less than 50% of retail. And if you're willing to refurbish old 'arn, you'll have an amazing shop for very little cash. Patience is the thing.
If you buy it all at once, you won't save a lot of money. Your choice.