Vendor pricing, product capabilities and regulatory posture reflect public materials as of August 2026 and move quickly; per-seat figures are list prices and therefore ceilings, not transaction prices. Cost, timeline and total-cost-of-ownership figures are vendor-published or generic-enterprise benchmarks used for order of magnitude, and are labelled as such — no independent wealth-specific benchmark exists for several of them. Nothing here is a recommendation for or against any vendor, and the regulatory discussion is not legal advice. Where the record is silent rather than merely unfound, the piece says so. Research and education, not investment advice.