Do people building local LLM rigs track RTX Ada/workstation card prices, or just consumer cards like the 5090?

curious how people here approach buying high-end/workstation cards (RTX 6000 Ada, 5000 Ada, etc) for local LLM work, do you actively watch pricing/timing on these specifically, or is the consumer 5090 usually enough for most builds?

also wondering if price alerts/tracking tools even exist for this category specifically, since these purchases are less frequent and higher stakes than a typical gaming GPU buy.