Big Fish,
Since you mentioned the CS SM045, we can compare more easily. Here's my take on it, for what it's worth. First, a couple of observations on features:
1. CS45 has a 750 w element, whereas the #3 has a 1200 w element.
2. CS45 has 3 shelves (nickel plated, 14"x18"), and the #3 comes with 4 shelves (solid stainless steel, 15"x20"). The extra inch in width, and 2" in depth may not seem like much, but it makes a big difference.
3. The CS controller, while electronic, is NOT a PID. It is a simple on/off, set the temp with up/down buttons, controller. The Auber PID is programmable with 6 steps, triggered by time or temperature, and holds temp within 1-2 degrees of set point. Also, replacement cost of the 45's controller is $235. Just looking at long-term cost of ownership, if it goes out after their 2 yr warranty.
Now, you mentioned you would be "close on $$" to get the #3 where you want it to be. Here's what I see, even considering their 10% off sale. I'm including a PID with the #3, but it is optional, and does not have to be purchased up-front for it to work:
SI Model 3:
Unit $499.00
Auber PID $216.00
Cart $200.00
Cover $40.00
Total $955.00
CS SM045:
Unit $1275.00
Cart $400.00
Cover $235.00
Extra shelf $31.00
Total $1,941.00
- 10% = 1,747.
Not considering shipping, the CS is $792 higher, $1008 higher if you go #3 stock (no PID).
So, you're looking at a smaller unit (both in size and wattage), a 2 yr vs. 3 yr warranty, and right at twice the price. Hope this helps - just trying to look at it from a "spec-spec" comparison, and value for the dollar.