I put most of the below info in another post, but thought I would repost it here if it helps others stumble across it and maybe provides some help.
I have 8 acres and needed a tractor for regular mowing of 2-3 acres, maintenance of 500ft driveway, and to do various odd jobs around my property. I ended up buying a Kubota
L3700SU HST w/FEL and QD 66inch bucket, also added cruise control, draw bar, 3 point stabilizer upgrade, and Kubota sunshade. Below are a few reasons I chose the 3700 over the 3300 (and over other BX, B, and L models).
1. More HP to ensure no problems mowing with a 6 foot finish mower.
2. LA463 FEL for 3700SU digs deeper/lifts higher/carries more, vs LA504 FEL for 3300SU.
3. A little heavier frame (L vs B) to better handle heavier workloads (esp loader work) and reduce stress and wear over the life of the tractor.
4. Price difference was not that much, and extra weight was minimal considering (my perception of) increase in capabilities.
5. At the end of the day, it had the best balance of features/specs/capabilities, and most bang for the buck compared to other models (BX, B, and L) for my tractor needs. Also, I had the warning from others ringing in my ears telling me to make sure I didn't buy too small as I can only afford to do this one time so trading up later was not an option.
Some recommend getting tires loaded, but I do not agree this is a requirement in all cases for all people. I did not do this as I wanted to keep weight down, primarily for mowing, to minimize tire tracks and damage to my lawn/sod. I owned a
L3710 for 5 years previously and did not have tires loaded on that tractor either. I did plenty of heavy loader work and also snow plowing when I lived in Northern Wisconsin, all with no problems. What I recommend is keep an implement that weighs at least a few hundred pounds hooked up to the back whenever doing loader work. I've used this method over many years on a couple of tractors now and it keeps me properly balanced and weighted down. The Woods PRD-7200 mower I currently use weighs just over 700 pounds and does a great job at providing needed ballast. I've hauled a few bucket loads of topsoil with my current tractor/mower combo and it works just fine.
In summary I have no hesitation recommending the
L3700SU, it's a lot of tractor for the money. Not too big, but not too small. Recommend the QD option for the bucket as I like ability to drop just the bucket for mowing, also having the option to change FEL attachments is a nice feature (and increases resale value). I'm very happy and glad a went with the
L3700SU, but encourage everyone to think carefully about the jobs they will be performing and budget they have to work with as this will help you make the best decision.
I thought about used vs new, and I almost bought used. However, my conclusion was that with the current financing and/or discounts available when buying new, and with the warranty when buying new, and when you look at what you pay vs what you get when buying used, it just made good sense to buy new and eliminate most of the worry and potential problems down the road. Best advise here is, do what you feel most comfortable with and can best work into your budget. My decision allows me to sleep well at night and have a good feeling that my tractor is ready to go to work when I am :thumbsup:!!!
Best of luck with your shopping

!