Major plus point is that you are getting zero meter direct from showroom.
Since you are buying same alto absolutely new zero meter hence it will be under warrantee for some weeks too.
Secondly I am speaking from my own experience, long time back I bought zero meter Suzuki and drove it for 7 years. In that time it was only oil change, filter change, tires change expense. That’s all. And believe me new Suzuki engines easily run upto 500k km if you drive them with care.
Thirdly, in case you need any types of part in future, these are fully available in almost every city.
Fourth its re-sale is very easy.