It's def more cheap - the only question is whether you'll be willing to run with that company for a year, and whether you indeed need hosting for a year. If you're just getting started, you might abandon the method after not seeing success, and in return your investment in hosting will be negative. In my opinion, the difference in prices (1 mo. versus 1 year) are not that drastic, you might as well run with the 3 mo. hosting plan for starters.