no doubt M30s is a great device according to price, but M30s only available in online. Samsung is not focusing on offline sale. A series comes in offline ,which has high prices with lesser specifications. even M30s of rs 13990 has better specs than A30s of rs.16999 .
M30s is not available offline just because of the price.. offline retail sale increases the cost of distribution and it also includes margins of retailers.. while online selling is cheaper for samsung and hence M series is available only online and has aggressive pricing.. hope this helps..