The height difference could mean a little something in terms of tonal performance across the compass of the piano, particularly with clarity in the bass. Both are considered high-quality models from well-respected manufacturers, but neither is particularly well known in the US market, particularly to the general public.
If you're going to upgrade only a few years down the road, then don't buy a new piano, or if you do, buy the best one you can afford and keep it longer-- you'll lose money, no matter what new piano you choose. I grew up on a slightly worse new upright piano than these, and it didn't impede my progress at all for the first 8 years of lessons (by an admittedly enthusiastic student, and my parents maintained it regularly). I was working on repertoire like the Brahms g minor Op.79 No.2 Rhapsody and complete easier Beethoven and Haydn sonatas by the end of that partnership. We upgraded to a newer used grand when I was about 15-16 years old and decided to major in piano performance after graduation. At that point, my repertoire included easier Bach preludes and fugues, complete easier and moderately difficult classical sonatas by Haydn, Mozart, Beethoven, some more bombastic romantic works that a teenaged boy would be into, and just starting some more well-known etudes, where the advantages of a grand piano made some sense.
The amount of discount when you buy the piano in the first place matters to an extent with resale value, but your preference for one over the other in terms of touch, tone, and appearance should matter more. When you back-figure the sales tax and typical local delivery costs, both are being offered at a healthy % discount.