Rate my deal - Sears/Kenmore appliances

[wtam]

Not sure if this is the right forum.

tryng to negotiate a deal on a bunch of Kenmore appliances from Sears.

They are giving me 20% off + an extra $10/appliance
Kenmore Elite smoothtop Slide in range reg $2299.99 - 20% = 1839.99
- sometimes goes on sale for 2099.99
Kenmore Elite turbozoneII Dishwasher reg $1099.99 - 20% = 879.99
- sometimes goes on sale for 899.99
Kenmore Elite HE3 Washer reg $1299.99 - 20% = 1039.99 (no pst for energy star)
Kenmore Elite HE3 Dryer reg $999.99 - 20% = 799.99
- sometimes wsh/dr goes on package deal for 1899.99

and free shipping (which i had to ask for)

I think the deal on washer/dryer is so-so, but the 20% on the range is hot, but they would only do 20% if i had all four appliances.

Rate my deal please.. do you think i should go for it? Is 20% off regular prices good for a Sears deal?

Thanks in advance