i simply buy BTC as an investment or for converting to altcoins. as altcoins are not readily available in india. as BTC is in the market
for me i buy bitcoin mostly for investment purposes, actually in my area there are very little facilities of using bitcoins for buying ans selling purposes, therefore we mostly use it for investment or for trading in alt coins and some time for gambling purposes also.
so far most people use bitcoin for online business purposes
like to invest online , storing value , to trade etc
there still few offline business offering you a good chance to make profit
as people still don't trust in bitcoin , just keep faith in bitcoin.