[pairodice]

You will need to determine how many slides you want - they are a conundrum due to more complexity and weight vs interior room. I personally hate (dislike?) the slideout rooms when they are IN due to space constraints and they make noise going down the road and leak. HOWEVER I LOVE them when they are OUT and we have just a TON more room in the coach. Our is the older HWH system and maybe the newer systems (after 2002 I believe) are supposed to be better but you will have to check with others on the forum. You might consider a Wanderlodge also (no factory support but a great owners group like this one). I will happily sell you mine for $400k :-) Other than the slides the other systems and build quality are top notch. Factory service folks are awesome no matter what year coach you have.
* If you keep the slides clean and learn to operate them correctly they are wonderful... my wife would kill me if she saw this post...