Started with $5. How come grinding the SNGs has become hell? You aren't making gains in your bankroll, or they are boringly easy? If it's the former, don't bother putting more money into your roll; focus on improving your skills. If you're beating them, definitely move up. When I had $100 I was playing $3+ .45 SnG's - if you're doing OK at the $1's you can surely take a shot at something a little higher.