Yes, it’s possible to buy a quantum computer in 2023. However, they are not yet widely available to the general public. They are currently very expensive and extremely difficult to manufacture. 

Quantum computers are a rapidly-developing technology that is helping to solve complex problems that conventional computers and laptops have been unable to find solutions for. They harness the counterintuitive physics of subatomic scales to smash some barriers that limit the speed of existing computers. 

Some publicly available quantum computers include: 

• Gemini: A 2 qubits desktop NMR quantum computer 
• Gemini Mini: A 2 qubits desktop NMR quantum computer 
• Triangulum: A 3 qubits desktop NMR quantum computer 

These computers are typically only have a couple of qubits, which limits their utility beyond teaching. The price is still way more than a super high-powered gaming machine equivalent. 

Prices for portable quantum computers start at under $9K. The Gemini has a fair bit more power than the mini and goes for 5.72 million yen, or about $US40,000. (Source google)

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