How important is a good rack?

I use a low mass stable little table for my turntable just like Linn suggests, and everything else is on a relatively stable (unlike myself) cheap but nice looking rack with a bottom drawer for storing extra tubes and maps of Cuba...I have vibrapods or other sorbethane type feet under everything (not the rack's feet...there's only so much rubber I can take) except the Linn which has its own rubber feet which seem to work fine...no feedback (or feedbag) or footfall issues, and the whole thing makes me seem more interesting than I actually am.

The Audio Beat's review of "The Scuttle" rack states that Silent Running decided it was "time to make an affordable rack" so they pitched the basic model at $6600 upwards.

Some vendors have a skewed understanding of the word "affordable"....

I compare equipment racks to loudspeaker cabinets in that the most cost effective solution is to minimize them with the ultimate goal of getting rid of them completely. If the goal is to prevent outside vibration from influencing equipment, then footer and spikes take priority over a rack. That said, equipment racks have a high convenience value and some are very visually appealing.

Yes, I take your point but the context of this discussion is turntable related. Not many people wish to get down on all fours to load the next LP. ;^)

By way of example, my rack was custom built by the manufacturer (I was the first customer to ask him to make a tripod arrangement) so he drafted it to my dimensions on a CAD system, sent me some dimensioned visualisation files for approval then made the rack for less than 1/10th of the price which Silent Running's cheapest rack is costing.
Good VFM?

Very important jump on a Symposium Isis ASAP!