Want-to-buy alerts that actually fire

A want-to-buy works when a seller can match it in ten seconds. "Cirrus SR22, 2018 or newer, under 1,200 hours, G6 preferred" is usable. "Nice touring airplane, glass panel, low time" is not. Post the request, keep it for 30 days, and watch your email. Matching sellers get the same ping so you are not the only one waiting.