20% down vs 25% for rental property

[Bhavik Uppalapati]

I need a quick suggestion , i am planning to buy a investment property in Mechanicsburg , PA .I am planning to buy townhouse for 2,14,000 for which i am planning to make a down payment of 20%, how ever i see that making 25% down will lower my interest rate by $90 per month , But for that i have to pay an additional $10,000. Is it better to pay 20% down and save $10,000 for my next one , as I am planning to buy one more in this year or make 25% down.I dont have $10,000 handy but i can get the money close to my closing date.I am thinking if i have to squeeze my self or play it safe by paying more interest rate, Amortization is coming close to $10,000 of interest and an other $10,000 in principle over period of 15 years if i am planning to pay 20% for 15 years.Please suggest.

Thanks