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price is no guarantee, i ride cheap tyres that come via the post and never had an issue .
Same here have bought continental 5000 tyres at eye watering prices and had to use tempory tyre patch to cycle home slowly first time after fitting them, bought Perelli P zero tyres seemed great then found deep cuts and even cracking as if they where years old, so now just buy mid range tyres when i find them on sale.
Plus only buy tyres when i need them, not to keep as spares, when i do buy tyres i fit them to a bike that has not been used much and use the tyres on the little used bike to the more used bike.
Seems strange to me that i have a car trailer bought used about 20 years ago, only use a few times a year and tyres still seem great, Have bikes that i only use now and again and there tyres seem to deteriorate after a few years? My bike tyres seem to get tired?