It's also a very different time of year for transfers. January buys are usually a bit panicky and often have to be done quickly. Players not necessarily looking for a move find themselves at a different club 24 hours later.
The players out of contract now (and that's who we are looking at I assume) have more time to weigh up their situations. I bet that if we have targets with multiple clubs interested, we'll have told them of our interest and they'll be waiting for the return of MM and MA from their hols (if they're interested in playing for us). I'm sure it's rare that you'd get "if you don't sign me today I'll take the next offer tomorrow".
I wouldn't be at all surprised to see several signings in the first few days of next week; in fact, I bet there are one or two deals that are practically complete at this moment. Plus, many players won't be out of contract until June 1st, so transfers could well be announced then that may have been in the works for months.
So... chill yer beans, everyone. We'll make plenty of new signings before crunch time. A week-long family holiday is unlikely to lead to us missing out on players.