They don't beg any more replacement than the other SATA SSDs you could purchase. You yourself admit that they aren't any less reliable than magnetic drives.
Not true. There are lots of SSDs with much higher longevity, using a variety of techniques. The Intel X25-M is optimized for capacity/cost, not longevity. Depending on your workload they can very well be less reliable than magnetic drives, especially if judge by the manufacturers' specifications.
They don't beg any more replacement than the other SATA SSDs you could purchase. You yourself admit that they aren't any less reliable than magnetic drives.