David,
Both of those are high quality grills and when new set someone back a lot of money. I don’t know enough to really discriminate between them or among some alternatives you might find including the Lynx I bought hoping to turn a profit. I would be more attracted to the Viking but $500 is a lot, at least for me. I think what you have to carefully consider is that these expensive grills use expensive parts. You can get sucked in pretty easily and your “Weber - priced” grill turn into a used car price grill
. I would do some parts availability and pricing before jumping. Since you are also in South Florida, though, you know the value of all 304 stainless construction. This is where to me the current Summit is a pretender trying to play in this league. The rusty cabinets and rusted burned through fire boxes are legendary. So if you have the funds and the desire, I can see going for a grill like this. If you can wait a few weeks I hope to post my experiences restoring the Lynx I picked up.