It is MUCH more expensive to upgrade later.
The costs of upgrades are not necessarily more expensive (not referring to the double window bit...I checked on those and merely screamed!).
1. What I consider expensive might be chunk change to you. The same with difficult. We got a couple of users here that change coaches like you change socks! He just keeps trading because he finds something he likes better. I've ragged on him a couple of times about more money than sense. Hey, it's his money...and he enjoys spending it...and I'm proud for him. Wish I could.
2. What upgrades you want done. Some upgrades would probably never be available from any dealership. And, some upgrades should never be done! Right now, an engineer is looking into adding a hydraulic tag axle for my 3055 RL along with necessary frame reinforcement. Push a button, I got 6 wheels...push another and I got 4. Believe me, it can be done and made to lood good. He did it on another RV. Only time will tell on this one.
3. Ray comes up with changes just for the fun of it. SmokeyBare is about the same. Have nail, will hammer. When they get finished less than 5% of their trailer will say Heartland on it. It's been rumored that they are opening up their own company.
4. There's a lot of satisfaction on making something your own. I'm doing mods to my trailer. A couple of which I won't talk about until they are complete. But, I'll bet next year you find out a bunch of people have done it because they got the idea from me. And, believe me, I've ripped off a bunch of ideas from Ray, Smokey, and JimB. JimB's recommendation is currently hanging on the toilet wall right now. IT WORKED GREAT JIM. BUT, I DID IT ON ALL 3 SIDES. Never did figure out where to put the ashtray.
5. I'm having stuff done to make all of my storage floor level. I need it. Ain't figured out what to do with the empty cabinets yet. There will not be a couch, table, recliner or chair in this place when I'm done...well, no chair unless it has wheels.
There is a place here in Norfolk, that will take an RV and completly redo it to customers wishes and will work with the you to keep you within the trailers weight class.