Yep. Dell's website will always show a sales price. Even better, use a different browser or refresh a hour later and the price will change as well. Even Lenovo and HP do it. The best is when you enter the configuration for a PC build and hit refresh and you see individual items change in prices.

Also if you go via a Dell sales rep you easily get 10% extra off that "sales price" for low volume buyers and if you are a large volume buyer you can easily get as much as 50% off the list price even for high ticket value items.

Likewise for Apple (though I guess Dell's discounts are more substantial

Wait what? Apple rarely if ever has "sales" on their products, I've seen student discounts and itunes gift cards, but that's about it.

At Dell/HP/Lenovo meanwhile half their products are "on sale" the same way that furniture stores have "sales" - its "sale" price is basically it's real price.

They don't have sales, but they definitely have 'sales team pricing' .