have had a front loader about 2 years. can't answer about the dryer. it wasn't worn out yet, so we didn't replace it. no longer a matched set but at least they're both white!
front loaders are simply different. if you buy one and think you can continue to do laundry in the same way, you're going to be VERY disappointed. but, if you approach it that you have a learning curve, you'll be fine. our water bill dropped by 40% - yes, you read that right. I do 8 loads a week and I had a fabulous top loader that was huge (actually held a set of queen and a set of twin sheets together). so, the big advantage of being able to do fewer loads because front loaders are bigger - I didn't see that. but, the water use went from 60 gallons or so per load to about 20 - I've always done a double rinse because we have skin sensitivities - now I don't feel so guilty. :)
I'm also using way less detergent. I always bought (yes past tense) on sale and had just bought 4 bottles when we got the front loader. those four bottles would've lasted about 6 months with the top loader. I'm into bottle 3 now, 2 years later. I only use about a tablespoon of detergent.
the big difference for me is that I have to pretreat stains. I never had to do that before. And if something is stinky (think performance wear and men - ugh or campfires), I make sure to spray with vinegar prior to throwing it in. when so little water is used, there just isn't enough water to dissolve the odor away.
and you have to be sure to leave the door open. In Colorado, the inside is dry within 24 hours but our humidity levels are almost nonexistent. When my mom was in texas, she wiped the seal after the last load and then left the door open and she never had an issue with mold/musty smell. Now that she's back in Colorado, she doesn't even wipe the seal anymore.
So, once I got over my learning curve, I've been very happy with the front loader. Feel like I'm doing my part with water and energy conservation. and I haven't had to buy laundry detergent in over 2 years!
Oh, and my front loader was less than $600, so it was essentially the same price as any top loader. its a GE.
I'll second the comment below about having lots of control options. without having the old dial, you have a lot less control on how to run the load - that's a little frustrating. but mine has a separate spin only and a rinse/spin cycle and I can change temperature/spin with any cycle option.
and between using the clothesline in the summer and only taking 20 minutes for clothes to dry in the dryer now, I may never get to replace the dryer!
Just be sure to do your research and avoid the models that seem to have had lots of issues - mold or otherwise.
oh, and when I was buying, I didn't hear one good thing about the top loading HE models. The salesman at best buy and the salesman at Home Depot wouldn't even talk to me about them - both said I'd be returning it within the month so why bother. maybe they've improved in 2 years but I'd ask what they've changed/improved.
good luck.