According to Crypto Rover on Twitter, the comparison of 'first our kidney, now our tooth' humorously reflects the continuing surge in cryptocurrency prices, particularly Bitcoin and Ethereum, as of May 15, 2025. These escalating values are making it increasingly expensive for new traders to enter the market, as evidenced by user sentiment and recent price action (source: Crypto Rover Twitter, May 15, 2025). Traders should monitor for potential retracement signals and increased volatility, as overextended rallies often precede sharp corrections. Market participants are advised to watch volume trends and technical resistance levels for timely entry and exit points.