I'm at a Crossroads in my Weekly Hold 'em Game, What do I do?

I have been playing a weekly to semi-weekly game of Texas Hold'em with a rotating group of friends now for about five years.  I believe we started on New Year's Day 2004 with just five of us in someone's living room.  Only one of us (not me) had really had much experience playing hold'em at a casino while the rest of us just watched on on TV and occasionally called it out in the semi-weekly dealer's choice game we had been playing for years before that.

So one day we decided to just play tournaments.  We each put $10 (or sometimes $20) in and played for a first or second place prize.  We did this for a few years and it was a blast.  We all started to learn each other's tendencies.  We would make casino trips together and sit at the same table so two, three, four of us would have fun playing with the strangers who would sit down.  We would never cheat but we knew each other so well that we could anticipate each other better and it would make for a more fun game.  Throughout that time, we would have people who would only show up every now and then and give us games of 10-20 people but was the same five or six of us would always show up.  We never really did it to try to win lots of money.  We just liked getting together every week on a Friday night and having some fun. 

At some point about a year and a half ago, it switched from being a tournament to just a game.  There was a maximum buy in of $25 at a time.  If you went out, you could rebuy.  The blinds were 25 cents/50 cents and it was a no limit game.  And this was also fun.  It was nice to switch and do something else.

I play a pretty tight, yet aggressive style of strategy.  I'm not afraid to go in and mix it up with some big hands.  I'm not against bluffing every now and then.  I'll call or raise a couple hands a night with a 3,10 offsuit if the situation seems right and I'll call a raise with a suited connector just to see a flop.  But most of the time, if I don't like my starting hand, I'll fold and wait for something to play.  I'm not the tightest person at the table and I'm not the loosest, I'm probably right in the middle.  This makes for fun nights when you're hitting flops and pure bore fests when your starting hands stink but it's my style and how I feel most comfortable.  And it's been a pretty successful strategy for me.  Throughout this time period, I was in the money in the tournaments more than most and in the cash games, I normally would leave with something more times than I didn't

But something strange started to happen with us over the last six months or so.  All of a sudden, a couple of people started playing with us each week that call everything, hit big hands with terrible cards, raise with nothing and call pre flop with nothing just to see what happens.  I don't have a problem with them playing the way they want but it really makes it tough for me to see flops, which is something I really enjoyed doing.  If want to see I flop, I'll have to commit 15% to 25% of my buy in just to see hand with a mid range hand.  If I don't hit anything after a couple of calls, I'm automatically down early and that makes it a little tougher to continue with the same strategy throughout the night.  

Now I don't go there each week with the idea of winning lots of money.  I really just want to play for three hours and have a little cash left over when I leave.  But more often than I want, I find myself leaving early out of chips because I called a couple of hands and didn't hit so I had to pick a hand, go all in and hope for the best.  There have been a few times over the past few months when I've thought about not showing because it's become more aggravating than fun but I really enjoy playing, I love seeing flops and I like the psychological part of the game.

So now I'm at a crossroads and I'm not sure what to do.  I want to keep playing which means I would have to make some switch in my strategy, but I'm not sure how to make that switch.  Do I play aggressive and hope for the best?  Do I tighten up and wait for a good hand? 

Any suggestions?