U can get extensions a** lot** cheaper than that. I’m in the UK but even in London which is prob the most expensive place for extensions in the country prices vary from £150 ($215) to around £2000 ($2874) tho that’s v.rare, even Victoria Beckham’s are cheaper than that lol.
The cheaper ones tend to be synthetic ‘monofibre’ hair and the more pricey ones human hair and with the most exclusive salons ur often just paying for the name when they’re usually just using the same brands. They don’t really use the ‘track’ system over here, usually just glued or tied in with a knot individually. I’ve got blonde extensions (my hair is a ‘mousy’ colour naturally) and I get stopped literally everyday by random people in the street complimenting my hair or asking who does it. I only pay £320 for 24" cut to elbow length and they stay in for about 4 months. Also, the hair doesn’t always have to be cut into short layers, if the hairdresser has a lot of expertise he/she can just keep the length and blend the extensions in perfectly, I only ever have mine trimmed when I have them taken out and replaced and that’s just a few millimetres at the very ends so I can let my hair grow long whilst my extensions are in.