My daughters (3 & 5) started skiing this year so I was also presented with the same dilemna that you have. As I inherited my girlfriend's skis (she bought, well I did, but that's besides the point, a new pair of skis after she had them "stolen", just by magic we found them the next day,hummm...), I decided to buy a set of cheap new boots (C$200) to use with those skis.
But I don't like skiing, compared to carving, it's rather boring, especially bombing on our small hills around here, anyways, I digress. So, I was carrying both my skis and board and both sets of boots to change from skis to board until I decided to check if my Head Stratos Pro boots fitted in my ski bindings...
Lo and behold, they fitted (note that the skis are also Head's but are about 5 years old)...
So, you may also check out skis as your boots may fit (maybe not if you have step-in heels) but have them properly adjusted to your bindings if you finally go with skis. Note that I haven't used them in diamonds or double diamonds runs, it's only to follow my girls around green trails.
OTOH, snowblades are much easier to carry around than skis but I find that you don't have much control on them.
Now I've got a pair of Nordica's used twice for sale...